Mandate is not displayed as customer &1 is blocked

Diagnosis
You want to display or change a mandate for a customer. The data related
to this customer may include personal data and is blocked.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The system does not display any data related to this customer to protect
personal data.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.