Message type: E = Error
Message class:  FCO_COPA - SFIN message class for CO-PA relevant issues 
Message number: 373
Message text: Custom Field &1 not contained in field catalog TKEF
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The SAP error message FCO_COPA373 indicates that a custom field you are trying to use in a CO-PA (Controlling-Profitability Analysis) report or function is not recognized because it is not included in the field catalog table TKEF. This table contains the definitions of fields that can be used in CO-PA reporting.
Cause: The error typically occurs due to one of the following reasons: Field Not Defined: The custom field you are trying to use has not been defined in the field catalog (TKEF). Field Catalog Not Updated: The field catalog may not have been updated to include the new custom field. Incorrect Field Name: There may be a typo or incorrect field name being referenced in your report or function.
Solution: To resolve this error, you can follow these steps: Check Field Definition: Verify that the custom field is correctly defined in the relevant data structure (e.g., in the data source or the InfoObject if using BW). Update Field Catalog: If
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