Message type: E = Error
Message class:  FKK_ID_XX_ODN - ODN message 
Message number: 124
Message text: With schema &1 sub-ID is active from &2 to &3
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The SAP error message FKK_ID_XX_ODN124 typically relates to issues with the billing or invoicing process in the SAP Convergent Charging or Contract Accounts Receivable and Payable (FI-CA) module. This error indicates that a specific schema (identified by &1) with a sub-ID is active for a defined period (from &2 to &3), which may be causing a conflict or issue in processing.
Cause: Active Schema Conflict: The error usually arises when there is an attempt to process a transaction that conflicts with an existing active schema. This can happen if: The schema is not correctly configured. There are overlapping periods for the schema that are not allowed. The transaction being processed does not comply with the rules defined in the active schema. Incorrect Configuration: The schema or sub-ID may not be set up correctly in the system, leading to conflicts during transaction processing. Data Inconsistencies: There may be inconsistencies in the data related to the billing or invoicing
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