How To Fix 29661 - Reference usage and new usage are the same

29661 - Overview

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 661

• Message text: Reference usage and new usage are the same

What causes this issue?

You want to define copy defaults for an item status when creating a new
usage from a reference usage.
You have entered the same value in the <LS>Reference BOM usage</> and
<LS>New BOM usage</> fields.

How to fix this error?

Please correct your entry in at least one of these fields.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29661 - Reference usage and new usage are the same ?

  The SAP error message 29661, "Reference usage and new usage are the same," typically occurs in the context of SAP's data migration or data transfer processes, particularly when dealing with the migration of master data or transactional data. This error indicates that the system has detected that the reference usage (the existing usage of a data object) and the new usage (the intended new usage for that data object) are identical, which is not allowed in the context of the operation being performed.
  
  Cause:
  
  Duplicate Usage: The error often arises when you are trying to change the usage of a data object (like a material, vendor, or customer) to a new usage that is the same as its current usage.
  Incorrect Data Mapping: During data migration or data upload, the mapping of the reference data to the new data may have been incorrectly set up, leading to the same usage being assigned.
  
  Configuration Issues: