Order that holds up in an audit
Every document is stored immutably; changes go through reversal entries. A hash chain makes tampering detectable.
Documents are linked to the matching bank transaction; open matches stay visible instead of disappearing.
Tax-relevant records are retained under § 147 AO, even after cancellation.

Questions about document capture
Do I have to keep paper documents?
As a rule no, provided the digitization follows the GoBD (Germany's principles for proper digital bookkeeping) procedure and the image matches visually. ZepDesk logs capture and changes; you make the retention decision with your tax advisor.
Does the software also recognize poor photos?
Contrast and sharpness help, but a receipt photographed at an angle works too. Fields that are not recognized stay empty and are flagged rather than guessed.
Can I send documents in by email?
Yes. Each company gets a mailbox to which suppliers or you yourself can send documents. The attachments land directly in the inbox.
Photo in, fields recognized.
Text recognition reads the details from the document and suggests the account assignment. You review instead of type.
Fields that are not recognized stay empty and are flagged rather than guessed.
Upload your first document.
Create an account, drag in a photo, review the suggestion. Document capture needs nothing more.