3738129 - Error "Enter a valid bank account number" is displayed when migrating "Customer" object

While performing the migration of the 'Customer' object the error "Enter a valid bank account number" - (Message class: R111, Message number: 18) occurs. 

SAP S/4HANA Cloud Public Edition. 

1. Open 'Migrate your data' application.
2. Select the 'Customer' object. 
3. Fill out the Bank Data sheet. 
4. Upload the XML template file
5. Run the simulation for 'Customer' object.

Neither the fields 'account number' nor 'IBAN' were provided in the Bank Data sheet of the template file. 

One of the those fields are mandatory, either the field for 'account number' or 'IBAN'. 

When maintaining the banking data, either maintain 'Account Number' or 'IBAN', do not maintain both of them. It is mandatory to fill one of those fields.

Refer to the SAP Note 2470789 for example of a data migration template XML. 

• Refer to: 2470789 - SAP S/4HANA Migration Cockpit (Cloud) - Sample data migration templates - SAP for Me 
• Refer to: Customer | SAP Help Portal

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