How To Fix SIPT661 - Customer name of customer number &1 cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: SIPT - SIPT: Digital Signature Portugal

• Message number: 661

• Message text: Customer name of customer number &1 cannot be changed

What causes this issue?

You tried to change the customer name for an existing customer number
and address. The customer is not uniquely identified by a VAT
registration number, that is, either the number is empty or it contains
a generic value.
Unless the customer is uniquely identified by a VAT registration number,
the customer name cannot be changed if the customer number has been used
in documents that have been posted with a Portuguese digital signature
(in a Portuguese company code or in a Portuguese organizational unit of
a foreign company code). This restriction applies to all changes,
including the correction of errors.

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 prevents the change if the situation described under
<LS>Diagnosis </>applies.

How to fix this error?

You can do one of the following:
Create a new customer master record with the required customer name.
Assign a valid VAT registration number to the existing customer master
record. Note that you must save the VAT registration number before you
change the customer name.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SIPT661 - Customer name of customer number &1 cannot be changed ?

  The SAP error message SIPT661 indicates that there is an attempt to change the customer name for a specific customer number, but the system is preventing this action. This error typically arises due to certain restrictions or settings in the SAP system that protect the integrity of customer data.
  Cause:
  
  Data Integrity Rules: SAP has built-in rules to maintain data integrity. Changing a customer name might violate these rules if the customer has transactions or historical data associated with it.
  Customer Status: The customer might be in a status that does not allow changes (e.g., blocked, inactive).
  Authorization Issues: The user attempting to make the change may not have the necessary permissions to modify customer data.
  Customizations or Enhancements: There may be custom logic implemented in the system that restricts changes to customer names under certain conditions.
  
  Solution:
  
  Check Customer Status: Verify if the customer is active and not blocked. If it is blocked, you may need to unblock it or change its status.
  Review Authorizations: Ensure that the user has the appropriate authorizations to change customer data. This can be checked with the security team or by reviewing the user's roles and permissions.
  Consult with Functional Team: If there are customizations in place, consult with the SAP functional team or the team responsible for the customer master data to understand any specific restrictions.
  Use Transaction Codes: Use transaction codes like XD02 (Change Customer) or FD02 (Change Customer - Company Code) to attempt the change and see if any additional error messages provide more context.
  Data Consistency Check: Ensure that there are no inconsistencies in the customer master data that might prevent the change. This can include checking for open transactions or pending invoices.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for customer master data management, such as XD01 (Create Customer), XD02 (Change Customer), and XD03 (Display Customer).
  SAP Notes: Check for any SAP Notes related to customer master data changes that might provide additional insights or solutions.
  Documentation: Review SAP documentation regarding customer master data management for best practices and guidelines.
  
  By following these steps, you should be able to identify the cause of the SIPT661 error and take appropriate action to resolve it.