How To Fix CM_SUB028 - Function not possible for user-defined text type &

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SUB - Substance (general)

• Message number: 028

• Message text: Function not possible for user-defined text type &

What causes this issue?

In the <DS:DE.ESETEXTCAT>User-Defined Text Type</> field, you selected
the user-defined text type &V1& that does not allow you to assign a
document.

System Response

In the <DS:DE.ESEHEADER>User-Def. Text/Document</> field there is no
input help available.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_SUB028 - Function not possible for user-defined text type & ?

  The SAP error message CM_SUB028, which states "Function not possible for user-defined text type &", typically occurs when there is an attempt to perform an operation on a user-defined text type that is not supported by the system. This can happen in various contexts, such as when working with text elements in SAP scripts, Smart Forms, or other text management functionalities.
  Cause:
  
  User-Defined Text Type: The error indicates that the operation you are trying to perform is not applicable to the specific user-defined text type you are working with. This could be due to the text type not being configured correctly or not being supported for the operation you are attempting.
  Configuration Issues: There may be issues with how the text types are defined in the system, or the text type may not have the necessary attributes or settings to allow the operation.
  Functionality Limitations: Certain functions in SAP may only be applicable to standard text types and not to custom or user-defined types.
  
  Solution:
  
  Check Text Type Configuration: Review the configuration of the user-defined text type in the SAP system. Ensure that it is set up correctly and that all necessary attributes are defined.
  Use Standard Text Types: If possible, try to use standard text types instead of user-defined ones for the operation you are attempting. This may resolve the issue if the functionality is not supported for custom types.
  Review Documentation: Consult SAP documentation or help resources to understand the limitations of user-defined text types and the specific operations that can be performed on them.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error is being triggered and gather more context about the operation being performed.
  Consult SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration or version.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on user-defined text types.
  Transaction Codes: Familiarize yourself with transaction codes related to text management, such as SO10 (Text Management) or SE78 (SAPscript Forms).
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the CM_SUB028 error and implement a suitable solution.