Message type: E = Error
Message class:  FKK_ID_XX_ODN - ODN message 
Message number: 103
Message text: Valid-from date &1 is already being used
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The SAP error message FKK_ID_XX_ODN103 indicates that there is an issue with the "valid-from" date in the context of contract accounts or billing documents in the SAP system. This error typically arises when you attempt to create or modify a record that has a "valid-from" date that overlaps with an existing record.
Cause: The error occurs because: The "valid-from" date you are trying to set is already in use by another record in the system. This can happen in scenarios involving billing documents, contract accounts, or any other financial transactions where date ranges are critical. The system enforces data integrity by preventing overlapping date ranges for certain records.
Solution: To resolve this error, you can take the following steps: Check Existing Records: Review the existing records in the system that may have the same "valid-from" date. You can do this by querying the relevant tables or using transaction codes that allow you to view the records in question. Adjust the
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