How To Fix SIPT663 - VAT registration number of customer number &1 cannot be changed

SIPT663 - Overview

• Message type: E = Error

• Message class: SIPT - SIPT: Digital Signature Portugal

• Message number: 663

• Message text: VAT registration number of customer number &1 cannot be changed

What causes this issue?

If a customer number has been used in documents with a Portuguese
digital signature (in a Portuguese company code or in a Portuguese
organizational unit of a foreign company code), the VAT registration
number can be changed only if it was previously empty or it contained a
generic value. 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.

How to fix this error?

To use the VAT registration number that you entered, create a new
customer master record.

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 SIPT663 - VAT registration number of customer number &1 cannot be changed ?

  The SAP error message SIPT663 indicates that there is an issue with changing the VAT registration number for a specific customer in the system. This error typically arises in the context of managing customer master data, particularly when dealing with VAT compliance and reporting.
  
  Cause:
  
  Data Integrity: The VAT registration number is often linked to various transactions and documents. Changing it may violate data integrity rules within the system.
  Legal Restrictions: In some jurisdictions, once a VAT registration number is assigned to a customer, it cannot be changed due to legal or regulatory requirements.
  System Configuration: The system may be configured to prevent changes to certain fields once they have been set, especially if there are related transactions or documents.
  Open Transactions: If there are open invoices or transactions associated with the customer, the system may restrict changes to the VAT registration number.
  
  
  Solution:
  
  Check for Open Transactions: Ensure that there are no open invoices or transactions