Hi,
To populate the IBAN number in the DME File please follow the following configuration process:
1. Execute Program SAPFPAYM to create a variant.
2. Enter MT103 in Payment Medium Format and click enter
3. Then click on the Format Parameters.
4. One pop-up appears " Other specifications for payment medium formats MT103"
5. Check the field " Transfer IBAN".
6. After this assign this variant to your Company Code and House Bank in TCode OBPM4 under MT103 Payment Format.
This way you would be able to transfer IBAN to your payment file.
Also, check note 1894458.
According to note 707650, please consider that IBAN should be define
as follows:
1. If you have not done this yet, define the IBAN in your house bank
account: Call transaction FI12 and choose 'IBAN' in the data of the
bank account.
In reference to the T028B settings (OT83), please note that you should
enter the account number here, not the alternative account number nor
IBAN.
Cristiano