How To Fix UPO_MIG021 - UOM Group &1 exists in UOM. It will not get migrated.

SAP Error Message - Details

• Message type: E = Error

• Message class: UPO_MIG - Message Class for PRA->UOM Migration

• Message number: 021

• Message text: UOM Group &1 exists in UOM. It will not get migrated.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPO_MIG021 - UOM Group &1 exists in UOM. It will not get migrated. ?

  The SAP error message UPO_MIG021 indicates that there is a Unit of Measure (UOM) group that already exists in the system, which prevents it from being migrated during a data migration process. This typically occurs when you are trying to migrate data from one system to another, or when you are performing a data upgrade or transformation.
  Cause:
  The error is caused by the presence of a UOM group in the target system that matches the UOM group being migrated. This can happen for several reasons:
  
  The UOM group already exists in the target system.
  There may be a naming conflict or duplication in the UOM groups.
  The migration process is attempting to create a UOM group that is not allowed because it already exists.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing UOM Groups:
  
  Go to the relevant transaction in SAP (e.g., CUNI for unit of measure settings) and check if the UOM group already exists in the target system.
  If it does exist, you may need to decide whether to keep the existing group or to modify the migration data.
  
  
  
  Modify Migration Data:
  
  If the existing UOM group is acceptable, you can modify your migration data to exclude this UOM group from the migration process.
  Alternatively, if you need to migrate the UOM group, consider renaming it in the source system before migration to avoid conflicts.
  
  
  
  Data Cleanup:
  
  If the UOM group in the target system is not needed, you can delete it (if it is not in use) to allow the migration to proceed.
  
  
  
  Consult Documentation:
  
  Review the migration documentation or guidelines provided by SAP for specific instructions on handling UOM groups during migration.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test migration to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CUNI (for unit of measure settings) and SE11 (for data dictionary) to check the definitions and settings of UOM groups.
  SAP Notes: Check SAP Notes for any specific guidance or patches related to UOM migration issues.
  Migration Tools: If you are using SAP S/4HANA Migration Cockpit or other migration tools, refer to their documentation for specific handling of UOM groups.
  
  By following these steps, you should be able to resolve the UPO_MIG021 error and successfully complete your migration process.