How To Fix E7600 - Reference customer was changed, data may be lost.

SAP Error Message - Details

• Message type: E = Error

• Message class: E7 - IS-U master data

• Message number: 600

• Message text: Reference customer was changed, data may be lost.

What causes this issue?

You have entered a different reference customer.

System Response

The system overwrites the existing data for the customer. Any data
entered manually may be lost.

How to fix this error?

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

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 E7600 - Reference customer was changed, data may be lost. ?

  The SAP error message E7600, which states "Reference customer was changed, data may be lost," typically occurs in the context of customer master data management. This error indicates that the reference customer associated with a particular transaction or data entry has been modified, and as a result, there is a risk that some data may not be consistent or could be lost.
  Cause:
  
  Change in Reference Customer: The reference customer linked to a transaction or document has been altered. This could happen if the customer master data was updated or if a different reference customer was selected.
  Data Inconsistency: The system detects that the change in the reference customer may lead to inconsistencies in the data being processed, which triggers the warning.
  Multiple Users: If multiple users are working on the same data or customer records simultaneously, one user’s changes may affect another user’s session.
  
  Solution:
  
  Review Changes: Check the changes made to the reference customer. You can do this by reviewing the change logs in the customer master data.
  Revert Changes: If the changes to the reference customer were not intended, consider reverting them to the previous state.
  Confirm Data Integrity: Ensure that the data you are working with is consistent and that all necessary fields are filled out correctly.
  Save Data: If you are sure that the changes are acceptable, you can proceed to save the data. However, be aware of the potential for data loss or inconsistency.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to your version of SAP and the context in which the error occurred.
  Contact Support: If the issue persists or if you are unsure about the changes, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes related to customer master data, such as XD01 (Create Customer), XD02 (Change Customer), and XD03 (Display Customer).
  User Authorizations: Ensure that users have the appropriate authorizations to make changes to customer master data to prevent unauthorized modifications.
  Data Consistency Checks: Implement regular data consistency checks and audits to ensure that customer data remains accurate and reliable.
  Training: Provide training for users on how to manage customer master data effectively to minimize the risk of errors.
  
  By understanding the cause and implementing the suggested solutions, you can effectively address the E7600 error in SAP.