How To Fix WRF_REF128 - Plant of source assignment (&1) has been omitted

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 128

• Message text: Plant of source assignment (&1) has been omitted

What causes this issue?

The reference assignment that you want to transfer to other plants is
already assigned to plant &V1& .

System Response

The system has omitted plant &V1& because it does not make sense to
transfer the assignment to the same plant.

How to fix this error?

If you would like to include plant &V1&, then enter it manually.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF128 - Plant of source assignment (&1) has been omitted ?

  The SAP error message WRF_REF128 indicates that there is an issue with the source assignment for a plant in the context of material management or logistics. This error typically arises when there is an attempt to create or modify a source assignment for a material, but the system cannot find a valid plant reference.
  Cause:
  
  Missing Plant Assignment: The plant specified in the source assignment does not exist or is not properly assigned in the system.
  Incorrect Configuration: The configuration settings for the material or plant may not be set up correctly, leading to the omission of the plant in the source assignment.
  Data Inconsistency: There may be inconsistencies in the master data related to the material or plant, such as missing or incorrect entries in the material master or plant master data.
  Authorization Issues: The user may not have the necessary authorizations to view or modify the plant assignments.
  
  Solution:
  
  Check Plant Existence: Verify that the plant specified in the source assignment exists in the system. You can do this by navigating to the relevant transaction (e.g., MM03 for material master) and checking the plant data.
  Review Source Assignment: Ensure that the source assignment is correctly defined. You may need to re-enter the source assignment for the material and ensure that the plant is included.
  Correct Configuration: If there are configuration issues, you may need to review the settings in the customizing (SPRO) related to material management and ensure that the plant is properly configured.
  Data Consistency Check: Run consistency checks on the material and plant master data to identify any discrepancies. You can use transaction codes like MM02 to edit the material master and ensure all necessary data is filled in.
  Authorization Check: Ensure that the user has the necessary authorizations to perform the action. You may need to consult with your SAP security team to verify this.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) to manage material data.
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may resolve the issue.
  Documentation: Review SAP documentation or help files related to material management and source assignment for further insights.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management for further assistance.