Standardize self billed invoicing across suppliers. Fast rollout, zero extra workload.
Do suppliers struggle with self billed invoices? Does your finance team spend hours on clarifications? Donnerstag.ai manages matching and follow up across your network. Automated, compliant, and ready for rollout.


Secure and GDPR-Compliant
Hosted in the EU and fully GDPR compliant. Role and permission management is built in. PSD2 compliant bank access (e.g. via FinAPI) is only activated when required. Every step is audit proof and fully transparent.
Enterprise benefits
More Efficiency.
More Security.
Why this matters?
The real problem is in your suppliers’ self billing process
You benefit from self billing. But many suppliers struggle: reconciliation and status are still tracked manually, proofs are missing, and emails go back and forth. The result: clarifications, delays, and unnecessary costs. Also for you.




Price and quantity differences are detected and documented automatically – cutting queries dramatically.
Standardized processes replace the constant back and forth between procurement and suppliers.
Clear guidelines make the process easy to follow – fewer mistakes from day one.
Every clarification case is tracked automatically – audit-proof, compliant, and transparent.
Enterprise benefits
Easy to implement
1
Kickoff & Setup
Once approved, Donnerstag.ai is activated without IT integration or system changes. Your supplier network receives secure access immediately.
2
Smart Matching & Full Transparency
Service records and self-billed invoices are reconciled automatically. Deviations are flagged in real time, documented with proof, and visible in the dashboard.
3
Full Control & Compliance
All reconciliation steps are audit proof and compliant. Results are transparent, traceable, and available to your finance team at any time.
“Donnerstag.ai uncovered issues we didn’t even know were there. The pilot setup was seamless. Now we save time every day and avoid costly errors”
Head of Shared Services, DAX Company
In just 15 minutes, see how Donnerstag.ai connects with your suppliers with zero extra effort for your team

Let's talk.
