In accordance with the SDD implementation guidelines (SEPA Direct Debit scheme implementation guide), each SEPA debit transmitted by the creditor to its bank must include all the mandate data including the “old mandate reference” and/or the “old creditor identifier” in mandate modifications performed by the creditor.
And the following information:
An end-to-end reference (defined by the creditor);
The IBAN for the account to be credited with the SDD;
The SDD amount (in euros);
Due date of the SDD;
The payment sequence type can take one of the following values:
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One-off: single use;
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Recurrent: recurrent use, but not the first or last SDD;
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First: first SDD in a recurrent use;
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Last: last SDD in a recurrent use;
The reason for payment, a title given by the creditor to the debtor (optional) can contain the associated invoice number, the number of the underlying contract, etc.
In addition to the Unique Mandate Reference (or the Unique Internal Reference or the Unique Pre-SEPA/creditor reference pairing), only the following information is required by SEPA Payment Suite to generate an SDD:
An amount;
A payment date.
And potentially (optional data):
An end-to-end reference;
The BIC/IBAN for the account to be credited with the SDD;
The reason for payment to send to the debtor.
This set of data defines a debit application.