How To Fix S_CUS_IMG_ACTIVITY133 - Table &1 contains forbidden key field '&2' of type String

SAP Error Message - Details

• Message type: E = Error

• Message class: S_CUS_IMG_ACTIVITY - IMG Activity

• Message number: 133

• Message text: Table &1 contains forbidden key field '&2' of type String

What causes this issue?

The table/view &V1& contains key fields of type 'STRING' or 'XSTRING'.

System Response

You cannot use the object in BC Sets, because BC Sets do not support
fields of type 'STRING'. If these fields are in the table/view key, as
in this case, they cannot be put in BC Sets.

How to fix this error?

This is not a table/view design error. Key fields can be of type
'STRING'/'XSTRING', but restrictions in the BC Set technology prevent
this table/view being used in BC Sets.
The SAP developer responsible must change the design of the table/view
in the Data Dictionary. Replace the field with one which is not of type
'STRING' or 'XSTRING'. If a maintenance dialog has been generated for
the table/view, regenerate it with the transaction SE54.
<ZH>Note:</>
Test the BC Set functionality, to ensure that the entries are correct.
Create a BC Set for the object.
Check whether the data has been recorded completely in the BC Set
(SCPR3).
Change an entry in the object (SPRO or SM30/34).
Activate the BC Set (SCPR20).
Check whether the values put in the BC Set have been written correctly
into the table/view.

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 S_CUS_IMG_ACTIVITY133 - Table &1 contains forbidden key field '&2' of type String ?

  The SAP error message S_CUS_IMG_ACTIVITY133 indicates that there is an issue with a configuration or customization activity in the SAP system. Specifically, it points out that a table (denoted as &1 in the error message) contains a forbidden key field (denoted as &2) of type String. This typically occurs when you are trying to create or modify a configuration that includes a key field that is not allowed in the context of the activity you are performing.
  Cause:
  
  Forbidden Key Field: The key field specified in the error message is not permitted for the particular table or activity you are working with. This could be due to system restrictions or design rules that prevent certain data types from being used as key fields.
  Configuration Error: There may be a misconfiguration in the customizing settings or an attempt to use a field that is not defined correctly in the data dictionary.
  Data Dictionary Constraints: The data dictionary (DDIC) may have constraints that prevent certain fields from being used as keys in specific contexts.
  
  Solution:
  
  Check Table Definition: Review the definition of the table mentioned in the error message. Ensure that the key fields are correctly defined and that the field type is appropriate for the intended use.
  Modify Configuration: If you are trying to add or modify a configuration, ensure that you are not including forbidden key fields. You may need to remove or replace the field with a valid one.
  Consult Documentation: Refer to SAP documentation or notes related to the specific table and activity to understand the restrictions and requirements.
  Use Transaction Codes: Use transaction codes like SE11 (Data Dictionary) to check the table structure and SE80 (Object Navigator) to analyze the related objects and configurations.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a production environment.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on similar issues.
  Customizing Settings: Review the customizing settings in the SAP system to ensure that they align with the expected configurations for the specific module or functionality you are working with.
  Testing: After making changes, perform thorough testing to ensure that the issue is resolved and that no new issues have been introduced.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.