How To Fix DT226 - Field of type CLNT not a key field. (Table is not client-specific)

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 226

• Message text: Field of type CLNT not a key field. (Table is not client-specific)

What causes this issue?

This table uses a field whose underlying domain has data type CLNT.
This field is not marked as a key field. As a result, the table is not
client-specific.

System Response

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

How to fix this error?

If you do not wish the table to be client-specific, no action is
required. If you would like it to be client-specific, however, the
field must be marked as a key field and be located in the first
position. In addition, the table may not be a value table for the
domain with data type CLNT.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT226 - Field of type CLNT not a key field. (Table is not client-specific) ?

  The SAP error message DT226 ("Field of type CLNT not a key field. (Table is not client-specific)") typically occurs when you are trying to define a field of type CLNT (client-specific) in a table that is not client-specific. This means that the table is designed to hold data that is not specific to any particular client in the SAP system, and therefore cannot have a client-specific field as part of its key.
  Cause:
  
  Table Definition: The table you are working with is defined as a non-client-specific table (i.e., it does not have a client field, usually the field MANDT).
  Field Type: You are attempting to add a field of type CLNT to the key of this non-client-specific table, which is not allowed.
  
  Solution:
  To resolve this error, you have a couple of options:
  
  
  Remove the CLNT Field from the Key:
  
  If the table is intended to be non-client-specific, you should not include any fields of type CLNT in the key. Review the table structure and remove the CLNT field from the key definition.
  
  
  
  Change the Table to Client-Specific:
  
  If the requirement is to have client-specific data, you can change the table definition to make it client-specific. This involves:
  
  Adding a MANDT field to the table.
  Ensuring that the table is defined as client-specific in the table attributes.
  
  
  
  
  
  Review Table Design:
  
  Consider whether the design of the table aligns with your business requirements. If the data should be client-specific, ensure that the table is structured accordingly.
  
  
  
  Related Information:
  
  Table Types: In SAP, tables can be client-specific (with a MANDT field) or cross-client (without a MANDT field). Understanding the difference is crucial for proper table design.
  Data Dictionary (SE11): You can use transaction SE11 to view and modify the table definitions. This transaction allows you to check the attributes of the table and make necessary changes.
  Field Types: Familiarize yourself with different field types in SAP, especially the implications of using CLNT fields in your data model.
  
  Additional Considerations:
  
  Always ensure that changes to table definitions are thoroughly tested in a development environment before moving to production.
  Consult with your ABAP team or SAP Basis team if you are unsure about the implications of changing table definitions, as it may affect existing applications or data integrity.