diff --git a/pitch-deck/app/api/admin/fp-patch/route.ts b/pitch-deck/app/api/admin/fp-patch/route.ts
index 04bb9d5..ff87109 100644
--- a/pitch-deck/app/api/admin/fp-patch/route.ts
+++ b/pitch-deck/app/api/admin/fp-patch/route.ts
@@ -1,26 +1,17 @@
 import { NextRequest, NextResponse } from 'next/server'
+import { requireAdmin } from '@/lib/admin-auth'
 import pool from '@/lib/db'
 import { computeFinanzplan } from '@/lib/finanzplan/engine'
 
+/** Admin-only: recompute a Finanzplan scenario. */
 export async function POST(request: NextRequest) {
-  const WD = 'c0000000-0000-0000-0000-000000000200'
+  const guard = await requireAdmin(request)
+  if (guard.kind === 'response') return guard.response
+
   const body = await request.json().catch(() => ({}))
-  const results: string[] = []
+  const scenarioId = body.scenarioId || (await pool.query("SELECT id FROM fp_scenarios WHERE is_default = true LIMIT 1")).rows[0]?.id
+  if (!scenarioId) return NextResponse.json({ error: 'No scenario found' }, { status: 404 })
 
-  try {
-    // Update material values from body if provided
-    if (body.material) {
-      for (const [label, vals] of Object.entries(body.material)) {
-        await pool.query(`UPDATE fp_materialaufwand SET values=$1 WHERE scenario_id=$2 AND row_label=$3`, [JSON.stringify(vals), WD, label])
-        results.push(`SET ${label}`)
-      }
-    }
-
-    const r = await computeFinanzplan(pool, WD)
-    results.push(`WD cash_m60=${r.liquiditaet?.endstand?.m60}`)
-  } catch (err) {
-    results.push(`ERROR: ${err instanceof Error ? err.message : String(err)}`)
-  }
-
-  return NextResponse.json({ ok: true, results })
+  const result = await computeFinanzplan(pool, scenarioId)
+  return NextResponse.json({ success: true, scenarioId, cash_m60: result.liquiditaet?.endstand?.m60 })
 }
diff --git a/pitch-deck/middleware.ts b/pitch-deck/middleware.ts
index fc6dfe4..2cfd3ba 100644
--- a/pitch-deck/middleware.ts
+++ b/pitch-deck/middleware.ts
@@ -6,7 +6,6 @@ const PUBLIC_PATHS = [
   '/auth',                    // investor login pages
   '/api/auth',                // investor auth API
   '/api/health',
-  '/api/admin/fp-patch',
   '/api/admin-auth',          // admin login API
   '/pitch-admin/login',       // admin login page
   '/_next',