report_service.datev_monthly_report compares user.company_id (uuid.UUID) against the passed company_id with != — a plain str from the JSON API response never equals the UUID, so it always looked like a mismatch. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015Ahyx6D3r7G1EuAc42nezn