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PEPPOL-EN16931-R061BT-89
input
The mandate reference is missing for a direct debit
`Mandate reference identifier` (BT-89) must be provided when the payment means is a direct debit (49 or 59).
Only the issuer holds this value: Factlint reports it and never fabricates it. Test your invoice to find out whether it is affected.
Why this error happens
The rule covers one code more than BR-DE-25-a: 49 (non-SEPA direct debit) in addition to 59. It is the unique reference of the mandate the debtor signed — without it the bank ties the collection to no authorisation.
How to fix it
Copy the mandate reference from your direct debit system. Factlint does not write it: it is a payment detail (rule 1).