GoBD / GDPdU Z3 Datentraegerueberlassung export: index.xml + DTD + CSV extracts for the Betriebspruefer's IDEA tool
Enforce gapless German document numbering per journal/company and detect numbering gaps (Lücken) for the Betriebsprüfung.
German monthly Festschreibung: sign-off, immutable period lock, re-open audit trail and a DATEV-export gate (GoBD).
Enforce 6/8/10-year statutory retention on tax-relevant records (Sec. 147 AO / Sec. 257 HGB), block premature deletion, retention dashboard
Pin every booking to its originating Beleg, enforce 'keine Buchung ohne Beleg', and keep a tamper-evident archival index (GoBD).
Audit-grade who-changed-what change journal over tax-relevant fields (GoBD Protokollierung), exportable for audit defence
Tamper-evident SHA-256 hash chain over posted journal entries with exportable Unveraenderbarkeit (immutability) evidence
Sequentially numbered, signable German stocktake count sheets (Aufnahmebeleg) and Inventur protocol per HGB §240/§241.
GoBD-compliant German cash book (Kassenbuch) with gapless numbering, immutable closed days and daily Kassensturz reconciliation.
Generate a versioned 5-block GoBD Verfahrensdokumentation (incoming, processing, storage, access, controls) from live Odoo config