Message type: E = Error
Message class:  CNV_CDOP_CA - CDOP Clearing Analysis 
Message number: 135
Message text: Could not determine the function group for the function module &
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The SAP error message CNV_CDOP_CA135 indicates that the system could not determine the function group for a specified function module. This error typically arises during data conversion or migration processes, particularly when using the SAP Conversion Tools or during the execution of custom programs that rely on specific function modules. Causes: Missing Function Module: The function module specified in the error message may not exist in the system. Incorrect Naming: There might be a typo or incorrect naming in the function module reference. Transport Issues: The function module may not have been transported correctly from the development environment to the production environment. Authorization Issues: The user executing the transaction may not have the necessary authorizations to access the function module. System Configuration: There may be issues with the system configuration or inconsistencies in the SAP system. Solutions: Check Function Module Existence: Use transaction SE37 to check if the function module exists in the system. If it does not exist,
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