Message type: E = Error
Message class:  FKK_ID_XX_ODN - ODN message 
Message number: 101
Message text: Field &2 is assigned to attribute set &1
If you have assigned fields to an attribute set, you cannot delete the
attribute set.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Delete the field assignments under <LS>Assign Fields to Attr. Set
</>before you delete the attribute set under <LS>Define Attribute Sets
</>.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FKK_ID_XX_ODN101 typically occurs in the context of SAP Convergent Charging or SAP Contract Accounts Receivable and Payable (FI-CA). This error indicates that a specific field (denoted as &2) is assigned to an attribute set (denoted as &1), which may not be correctly configured or is causing a conflict in the system.
Cause:
Configuration Issues: The field in question may not be properly configured in the attribute set. This could be due to missing or incorrect settings in the customizing of the attribute sets. Data Inconsistencies: There may be inconsistencies in the data that are causing the system to throw this error when trying to process a transaction. Field Assignment: The field might be assigned to an attribute set that is not compatible with the current operation or transaction being processed.
Solution: Check Configuration: Go to the customizing settings in SAP (transaction SPRO). Navigate to the relevant area where attribute sets are defined. Verify that the
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