How To Fix GB145 - Substitution & is assigned to class &, and not to class &

SAP Error Message - Details

• Message type: E = Error

• Message class: GB - Messages used by the Boolean code generator

• Message number: 145

• Message text: Substitution & is assigned to class &, and not to class &

What causes this issue?

This substitution is assigned to the wrong class.

System Response

None

How to fix this error?

Select a new substitution, or create a substitution that is assigned to
the correct class.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GB145 - Substitution & is assigned to class &, and not to class & ?

  The SAP error message GB145 typically relates to issues with substitution in the context of material management or inventory management. This error indicates that a substitution is not correctly assigned to the expected class or category.
  Cause:
  
  Incorrect Configuration: The substitution may not be properly configured in the system. This could be due to missing or incorrect entries in the substitution settings.
  Class Assignment Issues: The material or item in question may not be assigned to the correct class or category that is expected for the substitution to work.
  Master Data Issues: There may be inconsistencies or errors in the master data related to the materials or classes involved in the substitution.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or modify the substitution settings.
  
  Solution:
  
  Check Substitution Configuration: Go to the transaction code for maintaining substitution (e.g., OBY6 for substitution settings) and verify that the substitution is correctly defined and assigned to the appropriate classes.
  Review Class Assignments: Ensure that the materials involved in the substitution are assigned to the correct classes. You can check this in the material master data (transaction code MM03).
  Correct Master Data: If there are discrepancies in the master data, correct them. This may involve updating the material master records or the class assignments.
  Authorization Check: Ensure that the user has the necessary permissions to access and modify substitution settings. If not, contact your SAP security administrator.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on substitution settings and class assignments.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MM02 (Change Material), and OBY6 (Substitution Configuration).
  SAP Notes: Check SAP Notes for any known issues or patches related to substitution errors.
  Testing: After making changes, conduct tests to ensure that the substitution works as expected without triggering the error message.
  User Training: Ensure that users involved in material management are trained on how to properly configure and manage substitutions.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP material management.