diff --git a/.claude/rules/loc-exceptions.txt b/.claude/rules/loc-exceptions.txt
index 48ffb95a..0264aebb 100644
--- a/.claude/rules/loc-exceptions.txt
+++ b/.claude/rules/loc-exceptions.txt
@@ -134,6 +134,14 @@ docs-src/Breakpilot ComplAI Finanzplan.xlsm
 # Phase 5+ target for splitting into smaller subcomponents per wizard step.
 admin-compliance/components/sdk/ai-act/DecisionTreeWizard.tsx
 
+# --- admin-compliance: zentrale SDK-Schritt-Registry ---
+# Flache Liste aller 38 SDK-Steps mit kanonischer Reihenfolge (seq).
+# Splits nach Paket würden die globale Ordnungs-Garantie zerreißen und
+# Imports an mehreren Stellen aufblähen — der Wert dieser Datei ist
+# *eine* sortierte Source-of-Truth.
+# [guardrail-change]
+admin-compliance/lib/sdk/types/sdk-steps.ts
+
 # --- ai-compliance-sdk: oversized handler refactor backlog ---
 # Phase 5+ target for splitting handler groups into per-resource files.
 ai-compliance-sdk/internal/api/handlers/tender_handlers.go
diff --git a/admin-compliance/app/sdk/workflow/_components/ApprovalModal.tsx b/admin-compliance/app/sdk/workflow/_components/ApprovalModal.tsx
index 1c6caedf..18a8cd30 100644
--- a/admin-compliance/app/sdk/workflow/_components/ApprovalModal.tsx
+++ b/admin-compliance/app/sdk/workflow/_components/ApprovalModal.tsx
@@ -1,7 +1,9 @@
 'use client'
 
+export type ApprovalModalMode = 'approve-internal' | 'approve-client' | 'reject'
+
 interface ApprovalModalProps {
-  mode: 'approve' | 'reject'
+  mode: ApprovalModalMode
   approvalComment: string
   onCommentChange: (comment: string) => void
   onCancel: () => void
@@ -9,6 +11,26 @@ interface ApprovalModalProps {
   saving: boolean
 }
 
+const TITLES: Record<ApprovalModalMode, string> = {
+  'approve-internal': 'DSB-Freigabe → an Mandant weiterleiten',
+  'approve-client': 'Mandanten-Freigabe erteilen',
+  reject: 'Version ablehnen',
+}
+
+const BUTTON_LABELS: Record<ApprovalModalMode, string> = {
+  'approve-internal': 'DSB-Freigabe erteilen',
+  'approve-client': 'Mandanten-Freigabe erteilen',
+  reject: 'Ablehnen',
+}
+
+const PLACEHOLDERS: Record<ApprovalModalMode, string> = {
+  'approve-internal':
+    'Kommentar (optional) — Hinweise für den Mandanten...',
+  'approve-client':
+    'Kommentar (optional) — z.B. Freigabe durch Geschäftsführung...',
+  reject: 'Ablehnungsgrund...',
+}
+
 export default function ApprovalModal({
   mode,
   approvalComment,
@@ -17,18 +39,17 @@ export default function ApprovalModal({
   onConfirm,
   saving,
 }: ApprovalModalProps) {
+  const isReject = mode === 'reject'
   return (
     <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
       <div className="bg-white rounded-xl shadow-xl p-6 w-full max-w-md">
-        <h3 className="text-lg font-semibold text-slate-900 mb-4">
-          {mode === 'approve' ? 'Version freigeben' : 'Version ablehnen'}
-        </h3>
+        <h3 className="text-lg font-semibold text-slate-900 mb-4">{TITLES[mode]}</h3>
         <textarea
           value={approvalComment}
           onChange={(e) => onCommentChange(e.target.value)}
-          placeholder={mode === 'approve' ? 'Kommentar (optional)...' : 'Ablehnungsgrund...'}
+          placeholder={PLACEHOLDERS[mode]}
           className="w-full px-3 py-2 border border-slate-300 rounded-lg min-h-[100px] mb-4"
-          required={mode === 'reject'}
+          required={isReject}
         />
         <div className="flex justify-end gap-3">
           <button
@@ -39,14 +60,12 @@ export default function ApprovalModal({
           </button>
           <button
             onClick={onConfirm}
-            disabled={saving || (mode === 'reject' && !approvalComment)}
+            disabled={saving || (isReject && !approvalComment)}
             className={`px-4 py-2 text-white rounded-lg disabled:opacity-50 ${
-              mode === 'approve'
-                ? 'bg-green-600 hover:bg-green-700'
-                : 'bg-red-600 hover:bg-red-700'
+              isReject ? 'bg-red-600 hover:bg-red-700' : 'bg-green-600 hover:bg-green-700'
             }`}
           >
-            {saving ? 'Wird verarbeitet...' : mode === 'approve' ? 'Freigeben' : 'Ablehnen'}
+            {saving ? 'Wird verarbeitet...' : BUTTON_LABELS[mode]}
           </button>
         </div>
       </div>
diff --git a/admin-compliance/app/sdk/workflow/_components/CompareView.tsx b/admin-compliance/app/sdk/workflow/_components/CompareView.tsx
index 48936c78..a472bfec 100644
--- a/admin-compliance/app/sdk/workflow/_components/CompareView.tsx
+++ b/admin-compliance/app/sdk/workflow/_components/CompareView.tsx
@@ -1,6 +1,7 @@
 'use client'
 
 import { Version, STATUS_LABELS } from '../_types'
+import type { ApprovalModalMode } from './ApprovalModal'
 
 interface CompareViewProps {
   currentVersion: Version | null
@@ -9,7 +10,7 @@ interface CompareViewProps {
   onClose: () => void
   onSaveDraft: () => void
   onSubmitForReview: () => void
-  onShowApprovalModal: (mode: 'approve' | 'reject') => void
+  onShowApprovalModal: (mode: ApprovalModalMode) => void
   onPublishVersion: () => void
 }
 
@@ -64,28 +65,26 @@ export default function CompareView({
 
         {/* Right: Draft */}
         <div className="bg-white flex flex-col">
-          <div className={`border-b px-4 py-2 ${
-            draftVersion?.status === 'draft' ? 'bg-yellow-100 border-yellow-200' :
-            draftVersion?.status === 'review' ? 'bg-blue-100 border-blue-200' :
-            draftVersion?.status === 'approved' ? 'bg-green-100 border-green-200' :
-            'bg-slate-100 border-slate-200'
-          }`}>
-            <span className={`font-medium ${
-              draftVersion?.status === 'draft' ? 'text-yellow-800' :
-              draftVersion?.status === 'review' ? 'text-blue-800' :
-              draftVersion?.status === 'approved' ? 'text-green-800' :
-              'text-slate-800'
-            }`}>
+          <div
+            className={`border-b px-4 py-2 ${
+              draftVersion?.status === 'draft'
+                ? 'bg-yellow-100 border-yellow-200'
+                : draftVersion?.status === 'review' || draftVersion?.status === 'review_internal'
+                  ? 'bg-blue-100 border-blue-200'
+                  : draftVersion?.status === 'review_client'
+                    ? 'bg-indigo-100 border-indigo-200'
+                    : draftVersion?.status === 'approved'
+                      ? 'bg-green-100 border-green-200'
+                      : 'bg-slate-100 border-slate-200'
+            }`}
+          >
+            <span className="font-medium text-slate-800">
               {draftVersion ? 'Aenderungsversion' : 'Neue Version'}
             </span>
             {draftVersion && (
-              <span className={`ml-2 ${
-                draftVersion.status === 'draft' ? 'text-yellow-600' :
-                draftVersion.status === 'review' ? 'text-blue-600' :
-                draftVersion.status === 'approved' ? 'text-green-600' :
-                'text-slate-600'
-              }`}>
-                v{draftVersion.version} - {STATUS_LABELS[draftVersion.status].label}
+              <span className="ml-2 text-slate-600">
+                v{draftVersion.version} -{' '}
+                {STATUS_LABELS[draftVersion.status]?.label ?? draftVersion.status}
               </span>
             )}
           </div>
@@ -113,7 +112,7 @@ export default function CompareView({
             </button>
           </>
         )}
-        {draftVersion?.status === 'review' && (
+        {draftVersion?.status === 'review_internal' && (
           <>
             <button
               onClick={() => { onClose(); onShowApprovalModal('reject') }}
@@ -122,10 +121,26 @@ export default function CompareView({
               Ablehnen
             </button>
             <button
-              onClick={() => { onClose(); onShowApprovalModal('approve') }}
+              onClick={() => { onClose(); onShowApprovalModal('approve-internal') }}
               className="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-500"
             >
-              Freigeben
+              DSB-Freigabe → Mandant
+            </button>
+          </>
+        )}
+        {draftVersion?.status === 'review_client' && (
+          <>
+            <button
+              onClick={() => { onClose(); onShowApprovalModal('reject') }}
+              className="px-4 py-2 bg-red-600 text-white rounded-lg hover:bg-red-500"
+            >
+              Ablehnen
+            </button>
+            <button
+              onClick={() => { onClose(); onShowApprovalModal('approve-client') }}
+              className="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-500"
+            >
+              Mandanten-Freigabe
             </button>
           </>
         )}
diff --git a/admin-compliance/app/sdk/workflow/_components/HistoryPanel.tsx b/admin-compliance/app/sdk/workflow/_components/HistoryPanel.tsx
index be97a3ac..3097436a 100644
--- a/admin-compliance/app/sdk/workflow/_components/HistoryPanel.tsx
+++ b/admin-compliance/app/sdk/workflow/_components/HistoryPanel.tsx
@@ -9,6 +9,32 @@ interface HistoryPanelProps {
   currentVersion: Version | null
 }
 
+// Backend-Actions (compliance/services/legal_document_service.py):
+//   submitted_internal, approved_internal, approved_client,
+//   published, rejected, plus alte Werte 'submitted'/'approved'.
+const ACTION_LABELS: Record<string, string> = {
+  submitted: 'Eingereicht',
+  submitted_internal: 'An DSB eingereicht',
+  approved: 'Freigegeben',
+  approved_internal: 'DSB-Freigabe → Mandant',
+  approved_client: 'Mandanten-Freigabe',
+  published: 'Veroeffentlicht',
+  rejected: 'Abgelehnt',
+}
+
+function actionLabel(action: string): string {
+  return ACTION_LABELS[action] || action
+}
+
+function actionBadgeClass(action: string): string {
+  if (action.startsWith('approved') || action === 'published') {
+    return 'bg-green-100 text-green-700'
+  }
+  if (action === 'rejected') return 'bg-red-100 text-red-700'
+  if (action.startsWith('submitted')) return 'bg-blue-100 text-blue-700'
+  return 'bg-slate-100 text-slate-700'
+}
+
 export default function HistoryPanel({
   approvalHistory,
   versions,
@@ -22,12 +48,9 @@ export default function HistoryPanel({
         <div className="space-y-3">
           {approvalHistory.map((item, idx) => (
             <div key={idx} className="flex items-center gap-4 p-3 border border-slate-200 rounded-lg">
-              <span className={`px-2 py-1 rounded text-xs ${
-                item.action === 'approved' ? 'bg-green-100 text-green-700' :
-                item.action === 'rejected' ? 'bg-red-100 text-red-700' :
-                item.action === 'submitted' ? 'bg-blue-100 text-blue-700' :
-                'bg-slate-100 text-slate-700'
-              }`}>{item.action}</span>
+              <span className={`px-2 py-1 rounded text-xs ${actionBadgeClass(item.action)}`}>
+                {actionLabel(item.action)}
+              </span>
               <span className="text-sm text-slate-600">{item.approver || 'System'}</span>
               {item.comment && (
                 <span className="text-sm text-slate-500 italic">&quot;{item.comment}&quot;</span>
@@ -56,8 +79,12 @@ export default function HistoryPanel({
             <div className="flex items-center justify-between">
               <div className="flex items-center gap-3">
                 <span className="font-mono font-medium">v{v.version}</span>
-                <span className={`px-2 py-0.5 rounded text-xs ${STATUS_LABELS[v.status].color}`}>
-                  {STATUS_LABELS[v.status].label}
+                <span
+                  className={`px-2 py-0.5 rounded text-xs ${
+                    STATUS_LABELS[v.status]?.color ?? 'bg-slate-100 text-slate-700'
+                  }`}
+                >
+                  {STATUS_LABELS[v.status]?.label ?? v.status}
                 </span>
                 <span className="text-sm text-slate-500">{v.title}</span>
               </div>
diff --git a/admin-compliance/app/sdk/workflow/_components/SplitViewEditor.tsx b/admin-compliance/app/sdk/workflow/_components/SplitViewEditor.tsx
index 011d5b6b..acdcea52 100644
--- a/admin-compliance/app/sdk/workflow/_components/SplitViewEditor.tsx
+++ b/admin-compliance/app/sdk/workflow/_components/SplitViewEditor.tsx
@@ -70,29 +70,27 @@ export default function SplitViewEditor({
 
       {/* Right: Draft/Edit Version */}
       <div className="bg-white rounded-xl shadow-sm border overflow-hidden">
-        <div className={`border-b px-4 py-3 flex items-center justify-between ${
-          draftVersion?.status === 'draft' ? 'bg-yellow-50 border-yellow-200' :
-          draftVersion?.status === 'review' ? 'bg-blue-50 border-blue-200' :
-          draftVersion?.status === 'approved' ? 'bg-green-50 border-green-200' :
-          'bg-slate-50 border-slate-200'
-        }`}>
+        <div
+          className={`border-b px-4 py-3 flex items-center justify-between ${
+            draftVersion?.status === 'draft'
+              ? 'bg-yellow-50 border-yellow-200'
+              : draftVersion?.status === 'review' || draftVersion?.status === 'review_internal'
+                ? 'bg-blue-50 border-blue-200'
+                : draftVersion?.status === 'review_client'
+                  ? 'bg-indigo-50 border-indigo-200'
+                  : draftVersion?.status === 'approved'
+                    ? 'bg-green-50 border-green-200'
+                    : 'bg-slate-50 border-slate-200'
+          }`}
+        >
           <div>
-            <h3 className={`font-semibold ${
-              draftVersion?.status === 'draft' ? 'text-yellow-900' :
-              draftVersion?.status === 'review' ? 'text-blue-900' :
-              draftVersion?.status === 'approved' ? 'text-green-900' :
-              'text-slate-900'
-            }`}>
+            <h3 className="font-semibold text-slate-900">
               {draftVersion ? 'Aenderungsversion' : 'Neue Version'}
             </h3>
             {draftVersion && (
-              <p className={`text-sm ${
-                draftVersion.status === 'draft' ? 'text-yellow-700' :
-                draftVersion.status === 'review' ? 'text-blue-700' :
-                draftVersion.status === 'approved' ? 'text-green-700' :
-                'text-slate-700'
-              }`}>
-                v{draftVersion.version} - {STATUS_LABELS[draftVersion.status].label}
+              <p className="text-sm text-slate-700">
+                v{draftVersion.version} -{' '}
+                {STATUS_LABELS[draftVersion.status]?.label ?? draftVersion.status}
               </p>
             )}
           </div>
diff --git a/admin-compliance/app/sdk/workflow/_components/WorkflowStatusBar.tsx b/admin-compliance/app/sdk/workflow/_components/WorkflowStatusBar.tsx
index 63e433f0..de212fe2 100644
--- a/admin-compliance/app/sdk/workflow/_components/WorkflowStatusBar.tsx
+++ b/admin-compliance/app/sdk/workflow/_components/WorkflowStatusBar.tsx
@@ -2,16 +2,35 @@
 
 import { Version } from '../_types'
 
+export type ApprovalMode = 'approve-internal' | 'approve-client' | 'reject'
+
 interface WorkflowStatusBarProps {
   draftVersion: Version | null
   saving: boolean
   onCreateNewDraft: () => void
   onSaveDraft: () => void
   onSubmitForReview: () => void
-  onShowApprovalModal: (mode: 'approve' | 'reject') => void
+  onShowApprovalModal: (mode: ApprovalMode) => void
   onPublishVersion: () => void
 }
 
+// 5-Stage Lifecycle:
+//   draft → review_internal (DSB-Pruefung) → review_client (Mandant-Pruefung)
+//        → approved → published
+// Buttons sind v1 nicht role-gefiltert — alle relevanten Aktionen sichtbar.
+const STAGES: { status: string; label: string }[] = [
+  { status: 'draft', label: 'Entwurf' },
+  { status: 'review_internal', label: 'DSB-Pruefung' },
+  { status: 'review_client', label: 'Mandant-Pruefung' },
+  { status: 'approved', label: 'Freigegeben' },
+  { status: 'published', label: 'Veroeffentlicht' },
+]
+
+function isActiveStage(stageStatus: string, draftStatus: string | undefined, hasDraft: boolean) {
+  if (stageStatus === 'published') return !hasDraft
+  return draftStatus === stageStatus
+}
+
 export default function WorkflowStatusBar({
   draftVersion,
   saving,
@@ -21,34 +40,31 @@ export default function WorkflowStatusBar({
   onShowApprovalModal,
   onPublishVersion,
 }: WorkflowStatusBarProps) {
+  const status = draftVersion?.status
   return (
     <div className="bg-white rounded-xl shadow-sm border p-4">
-      <div className="flex items-center justify-between">
-        <div className="flex items-center gap-6">
-          {['draft', 'review', 'approved', 'published'].map((status, idx) => (
-            <div key={status} className="flex items-center">
-              {idx > 0 && <div className="w-8 h-0.5 bg-slate-200 mr-2" />}
+      <div className="flex items-center justify-between flex-wrap gap-4">
+        <div className="flex items-center gap-4 flex-wrap">
+          {STAGES.map((stage, idx) => (
+            <div key={stage.status} className="flex items-center">
+              {idx > 0 && <div className="w-6 h-0.5 bg-slate-200 mr-2" />}
               <div className="flex items-center gap-2">
-                <div className={`w-8 h-8 rounded-full flex items-center justify-center text-sm font-medium ${
-                  (status === 'draft' && draftVersion?.status === 'draft') ||
-                  (status === 'review' && draftVersion?.status === 'review') ||
-                  (status === 'approved' && draftVersion?.status === 'approved') ||
-                  (status === 'published' && !draftVersion)
-                    ? 'bg-purple-500 text-white'
-                    : 'bg-slate-200 text-slate-600'
-                }`}>{idx + 1}</div>
-                <span className="text-sm text-slate-600">
-                  {status === 'draft' ? 'Entwurf' :
-                   status === 'review' ? 'Pruefung' :
-                   status === 'approved' ? 'Freigegeben' : 'Veroeffentlicht'}
-                </span>
+                <div
+                  className={`w-8 h-8 rounded-full flex items-center justify-center text-sm font-medium ${
+                    isActiveStage(stage.status, status, Boolean(draftVersion))
+                      ? 'bg-purple-500 text-white'
+                      : 'bg-slate-200 text-slate-600'
+                  }`}
+                >
+                  {idx + 1}
+                </div>
+                <span className="text-sm text-slate-600">{stage.label}</span>
               </div>
             </div>
           ))}
         </div>
 
-        {/* Action Buttons */}
-        <div className="flex items-center gap-2">
+        <div className="flex items-center gap-2 flex-wrap">
           {!draftVersion && (
             <button
               onClick={onCreateNewDraft}
@@ -59,7 +75,7 @@ export default function WorkflowStatusBar({
             </button>
           )}
 
-          {draftVersion?.status === 'draft' && (
+          {status === 'draft' && (
             <>
               <button
                 onClick={onSaveDraft}
@@ -73,12 +89,12 @@ export default function WorkflowStatusBar({
                 disabled={saving}
                 className="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 disabled:opacity-50 text-sm font-medium"
               >
-                Zur Pruefung einreichen
+                An DSB einreichen
               </button>
             </>
           )}
 
-          {draftVersion?.status === 'review' && (
+          {status === 'review_internal' && (
             <>
               <button
                 onClick={() => onShowApprovalModal('reject')}
@@ -88,16 +104,35 @@ export default function WorkflowStatusBar({
                 Ablehnen
               </button>
               <button
-                onClick={() => onShowApprovalModal('approve')}
+                onClick={() => onShowApprovalModal('approve-internal')}
                 disabled={saving}
                 className="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 disabled:opacity-50 text-sm font-medium"
               >
-                Freigeben
+                DSB-Freigabe → Mandant
               </button>
             </>
           )}
 
-          {draftVersion?.status === 'approved' && (
+          {status === 'review_client' && (
+            <>
+              <button
+                onClick={() => onShowApprovalModal('reject')}
+                disabled={saving}
+                className="px-4 py-2 bg-red-600 text-white rounded-lg hover:bg-red-700 disabled:opacity-50 text-sm font-medium"
+              >
+                Ablehnen
+              </button>
+              <button
+                onClick={() => onShowApprovalModal('approve-client')}
+                disabled={saving}
+                className="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 disabled:opacity-50 text-sm font-medium"
+              >
+                Mandant-Freigabe
+              </button>
+            </>
+          )}
+
+          {status === 'approved' && (
             <button
               onClick={onPublishVersion}
               disabled={saving}
@@ -107,9 +142,11 @@ export default function WorkflowStatusBar({
             </button>
           )}
 
-          {draftVersion?.status === 'rejected' && (
+          {status === 'rejected' && (
             <div className="flex items-center gap-2">
-              <span className="text-sm text-red-600">Abgelehnt: {draftVersion.rejection_reason}</span>
+              <span className="text-sm text-red-600">
+                Abgelehnt: {draftVersion?.rejection_reason}
+              </span>
               <button
                 onClick={onCreateNewDraft}
                 disabled={saving}
diff --git a/admin-compliance/app/sdk/workflow/_hooks/useWorkflowActions.ts b/admin-compliance/app/sdk/workflow/_hooks/useWorkflowActions.ts
index 46052b65..365346ac 100644
--- a/admin-compliance/app/sdk/workflow/_hooks/useWorkflowActions.ts
+++ b/admin-compliance/app/sdk/workflow/_hooks/useWorkflowActions.ts
@@ -2,6 +2,7 @@
 
 import { useState } from 'react'
 import { Document, Version, ApprovalHistoryItem } from '../_types'
+import type { ApprovalModalMode } from '../_components/ApprovalModal'
 
 interface UseWorkflowActionsParams {
   selectedDocument: Document | null
@@ -27,7 +28,7 @@ export function useWorkflowActions(params: UseWorkflowActionsParams) {
 
   const [saving, setSaving] = useState(false)
   const [approvalComment, setApprovalComment] = useState('')
-  const [showApprovalModal, setShowApprovalModal] = useState<'approve' | 'reject' | null>(null)
+  const [showApprovalModal, setShowApprovalModal] = useState<ApprovalModalMode | null>(null)
   const [approvalHistory, setApprovalHistory] = useState<ApprovalHistoryItem[]>([])
   const [showNewDocModal, setShowNewDocModal] = useState(false)
   const [newDocForm, setNewDocForm] = useState({ type: 'privacy_policy', name: '', description: '' })
@@ -123,10 +124,15 @@ export function useWorkflowActions(params: UseWorkflowActionsParams) {
   }
 
   const approveVersion = async () => {
+    // Backward-compat alias — leitet auf approve-internal (DSB → Mandant)
+    return approveInternal()
+  }
+
+  const approveInternal = async () => {
     if (!draftVersion) return
     setSaving(true)
     try {
-      const res = await fetch(`/api/admin/consent/versions/${draftVersion.id}/approve`, {
+      const res = await fetch(`/api/admin/consent/versions/${draftVersion.id}/approve-internal`, {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({ comment: approvalComment }),
@@ -138,10 +144,35 @@ export function useWorkflowActions(params: UseWorkflowActionsParams) {
         await loadVersions(selectedDocument!.id)
       } else {
         const err = await res.json()
-        setError(err.error || 'Fehler bei der Freigabe')
+        setError(err.error || 'Fehler bei der DSB-Freigabe')
       }
     } catch {
-      setError('Fehler bei der Freigabe')
+      setError('Fehler bei der DSB-Freigabe')
+    } finally {
+      setSaving(false)
+    }
+  }
+
+  const approveClient = async () => {
+    if (!draftVersion) return
+    setSaving(true)
+    try {
+      const res = await fetch(`/api/admin/consent/versions/${draftVersion.id}/approve-client`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ comment: approvalComment }),
+      })
+
+      if (res.ok) {
+        setShowApprovalModal(null)
+        setApprovalComment('')
+        await loadVersions(selectedDocument!.id)
+      } else {
+        const err = await res.json()
+        setError(err.error || 'Fehler bei der Mandanten-Freigabe')
+      }
+    } catch {
+      setError('Fehler bei der Mandanten-Freigabe')
     } finally {
       setSaving(false)
     }
@@ -242,7 +273,8 @@ export function useWorkflowActions(params: UseWorkflowActionsParams) {
     newDocForm, setNewDocForm,
     creatingDoc,
     createNewDraft, saveDraft, submitForReview,
-    approveVersion, rejectVersion, publishVersion,
+    approveVersion, approveInternal, approveClient,
+    rejectVersion, publishVersion,
     createDocument, loadApprovalHistory,
   }
 }
diff --git a/admin-compliance/app/sdk/workflow/_types.ts b/admin-compliance/app/sdk/workflow/_types.ts
index d9c0e658..9dc69932 100644
--- a/admin-compliance/app/sdk/workflow/_types.ts
+++ b/admin-compliance/app/sdk/workflow/_types.ts
@@ -16,7 +16,15 @@ export interface Version {
   title: string
   content: string
   summary?: string
-  status: 'draft' | 'review' | 'approved' | 'published' | 'archived' | 'rejected'
+  status:
+    | 'draft'
+    | 'review' // backward-compat (alte Daten, vor 5-Stage Migration 148)
+    | 'review_internal'
+    | 'review_client'
+    | 'approved'
+    | 'published'
+    | 'archived'
+    | 'rejected'
   created_at: string
   updated_at?: string
   created_by?: string
@@ -35,6 +43,8 @@ export interface ApprovalHistoryItem {
 export const STATUS_LABELS: Record<string, { label: string; color: string }> = {
   draft: { label: 'Entwurf', color: 'bg-yellow-100 text-yellow-700' },
   review: { label: 'In Pruefung', color: 'bg-blue-100 text-blue-700' },
+  review_internal: { label: 'DSB-Pruefung', color: 'bg-blue-100 text-blue-700' },
+  review_client: { label: 'Mandant-Pruefung', color: 'bg-indigo-100 text-indigo-700' },
   approved: { label: 'Freigegeben', color: 'bg-green-100 text-green-700' },
   published: { label: 'Veroeffentlicht', color: 'bg-emerald-100 text-emerald-700' },
   archived: { label: 'Archiviert', color: 'bg-slate-100 text-slate-700' },
diff --git a/admin-compliance/app/sdk/workflow/page.tsx b/admin-compliance/app/sdk/workflow/page.tsx
index 51fae55e..d533a928 100644
--- a/admin-compliance/app/sdk/workflow/page.tsx
+++ b/admin-compliance/app/sdk/workflow/page.tsx
@@ -92,7 +92,11 @@ export default function WorkflowPage() {
         setCurrentVersion(published || null)
 
         const draft = versionList.find((v: Version) =>
-          v.status === 'draft' || v.status === 'review' || v.status === 'approved'
+          v.status === 'draft' ||
+          v.status === 'review' || // backward-compat: alte Daten
+          v.status === 'review_internal' ||
+          v.status === 'review_client' ||
+          v.status === 'approved'
         )
         if (draft) {
           setDraftVersion(draft)
@@ -256,7 +260,13 @@ export default function WorkflowPage() {
             actions.setShowApprovalModal(null)
             actions.setApprovalComment('')
           }}
-          onConfirm={actions.showApprovalModal === 'approve' ? actions.approveVersion : actions.rejectVersion}
+          onConfirm={
+            actions.showApprovalModal === 'approve-internal'
+              ? actions.approveInternal
+              : actions.showApprovalModal === 'approve-client'
+                ? actions.approveClient
+                : actions.rejectVersion
+          }
           saving={actions.saving}
         />
       )}