Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 423
Message text: Multiple path &1: Spec. function module was not maintained
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The SAP error message CNV_10020423 indicates that there is an issue with a specific function module that has not been maintained properly in the context of a conversion or migration process. This error typically arises during data migration activities, especially when using SAP's Conversion Tools or during system upgrades.
Cause: The error message suggests that there are multiple paths for a specific function module, but the required function module has not been maintained or defined correctly. This can happen due to several reasons: Missing Function Module: The function module that is expected to be called during the conversion process is not available in the system. Incorrect Configuration: The configuration for the function module may not be set up correctly, leading to ambiguity in which path to take. Version Mismatch: The function module may exist in a different version or may not be compatible with the current system setup. Transport Issues: If the function module was transported
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