How To Fix /SMB/TYPES026 - Custom type &1 is assigned and cannot be deleted (line &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/TYPES -

• Message number: 026

• Message text: Custom type &1 is assigned and cannot be deleted (line &2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/TYPES026 - Custom type &1 is assigned and cannot be deleted (line &2) ?

  The SAP error message /SMB/TYPES026 indicates that a custom type (denoted as &1) is currently assigned to some objects or entities within the system, and therefore, it cannot be deleted. The line number &2 typically refers to the specific line in the context where the error occurred.
  Cause:
  
  Assignment of Custom Type: The custom type you are trying to delete is actively being used or referenced in various configurations, such as in data models, mappings, or other related objects.
  Dependencies: There may be dependencies or relationships with other objects that prevent the deletion of the custom type.
  System Integrity: SAP enforces integrity rules to ensure that deleting a type does not lead to inconsistencies in the system.
  
  Solution:
  
  
  Identify Dependencies:
  
  Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to check where the custom type is being used.
  Look for any references in tables, structures, or other custom objects.
  
  
  
  Remove Assignments:
  
  If you find that the custom type is assigned to any objects, you will need to remove those assignments first.
  This may involve modifying or deleting the objects that reference the custom type.
  
  
  
  Check for Related Objects:
  
  Ensure that there are no related objects that might be using the custom type. This could include data elements, domains, or other types.
  
  
  
  Consult Documentation:
  
  Review any documentation or comments associated with the custom type to understand its purpose and implications of deletion.
  
  
  
  Testing:
  
  After removing the assignments, test the system to ensure that everything functions correctly before attempting to delete the custom type again.
  
  
  
  Delete the Custom Type:
  
  Once all dependencies are resolved, you can proceed to delete the custom type.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE80, SE37 (for function modules), and SE24 (for classes) to navigate through the system and check for dependencies.
  SAP Notes: Check SAP Notes for any specific guidance or known issues related to the error message.
  Backup: Always ensure that you have a backup or a way to restore the system to its previous state before making changes, especially deletions.
  
  If you are still unable to resolve the issue after following these steps, consider reaching out to your SAP Basis or development team for further assistance.