How To Fix E2196 - Check table & has no key field with the domain & of the field &

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 196

• Message text: Check table & has no key field with the domain & of the field &

What causes this issue?

The check table must have a key field which has the same domain as
the check field of the foreign key table.
The table selected cannot be used as a check table because it does
not have a key field with the same domain as the check field.

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?

Select a table as check table which satisfies the above condition. The
possible candidates can be displayed via the F4 help for the
input field 'check table' in the foreign key maintenance.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2196 - Check table & has no key field with the domain & of the field & ?

  The SAP error message E2196 indicates that a check table does not have a key field defined with the specified domain for a particular field. This error typically arises in the context of data dictionary objects, particularly when defining foreign key relationships between tables.
  Cause:
  
  Missing Key Field: The check table specified in the error message does not have a key field that corresponds to the domain of the field in the referencing table.
  Incorrect Table Definition: The check table may not be properly defined, or the key fields may not be set up correctly.
  Domain Issues: The domain associated with the field in the referencing table may not match any key field in the check table.
  
  Solution:
  
  
  Check Table Definition:
  
  Go to the Data Dictionary (transaction SE11).
  Enter the name of the check table mentioned in the error message.
  Verify that the table has a key field defined. If it does not, you will need to add a key field that corresponds to the domain of the field in the referencing table.
  
  
  
  Define Key Fields:
  
  If the check table is missing a key field, you can add a key field by editing the table definition.
  Ensure that the key field's data type and length match the domain of the field in the referencing table.
  
  
  
  Review Domain:
  
  Check the domain associated with the field in the referencing table to ensure it is correctly defined and corresponds to the key field in the check table.
  
  
  
  Foreign Key Relationship:
  
  If you are trying to create a foreign key relationship, ensure that the foreign key field in the referencing table points to a valid key field in the check table.
  
  
  
  Transport Requests:
  
  If changes are made, ensure that they are included in a transport request if you are working in a development environment.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE11: Data Dictionary
  SE14: Database Utility (to check and adjust database objects)
  
  
  
  Documentation: Refer to SAP Help documentation for more details on data dictionary objects and foreign key relationships.
  
  
  Testing: After making the necessary changes, test the functionality to ensure that the error no longer occurs.
  
  
  By following these steps, you should be able to resolve the E2196 error and ensure that your check table is properly defined with the necessary key fields.