How To Fix SCMP_EXCP009 - &1-&2 is a key field and cannot be excluded

SAP Error Message - Details

• Message type: E = Error

• Message class: SCMP_EXCP - Comparison Tool Exception Handling

• Message number: 009

• Message text: &1-&2 is a key field and cannot be excluded

What causes this issue?

You may have tried to put a table/view key field in the exclusion
table, but key fields are the basis of Cross-System Viewer comparisons.
If you have made an upgrade and you are reusing a previously-created
exclusion table, it may contain exclusions which in turn contain key
fields.

System Response

The system does not accept your entries.

How to fix this error?

Specify a non-key field, or choose another exclusion type.
To delete inconsistent entries from older releases (see above):
Go back.
Call the exclusion table again.
Mark all entries which contain key fields.
Delete these entries.
Save your changes.
You can then make new entries.

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 SCMP_EXCP009 - &1-&2 is a key field and cannot be excluded ?

  The SAP error message SCMP_EXCP009 indicates that a key field is being excluded from a process where it is required. This typically occurs in scenarios involving data processing, such as during the creation or modification of data records in SAP, where certain fields are designated as key fields and must be included in the operation.
  Cause:
  
  Key Field Exclusion: The error arises when an attempt is made to exclude a field that is defined as a key field in the database table or structure. Key fields are essential for uniquely identifying records in a database.
  Data Model Constraints: The data model or configuration may have constraints that require certain fields to be present in operations like data uploads, transformations, or during the execution of specific transactions.
  
  Solution:
  
  Review the Data Model: Check the data model or structure definition to identify which fields are designated as key fields. Ensure that these fields are included in your operation.
  Modify the Operation: If you are trying to exclude a key field in a data operation (like an upload or transformation), modify your operation to include the key field.
  Consult Documentation: Refer to SAP documentation or the specific module documentation to understand the requirements for key fields in the context you are working with.
  Debugging: If you are developing custom code or using a custom program, debug the code to ensure that key fields are not being inadvertently excluded.
  Consult with SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Key Fields: In SAP, key fields are critical for database integrity and are used to uniquely identify records. They are defined in the data dictionary (SE11).
  Data Uploads: When performing data uploads (e.g., using LSMW, BAPIs, or direct input methods), ensure that all required key fields are included in the data being processed.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE11 (Data Dictionary), SE37 (Function Modules), and SE80 (Object Navigator).
  
  By ensuring that key fields are included in your operations and understanding the constraints of your data model, you can resolve the SCMP_EXCP009 error effectively.