Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 421
Message text: Program &1 for determination of object type EO does not exist
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The SAP error message CNV_10020421 typically indicates that the system is unable to determine the object type EO (which usually stands for "Enterprise Object") because the program specified in the error message does not exist or is not accessible in the current context. This error is often encountered during data migration or conversion processes, particularly when using SAP's Conversion Tools.
Cause: Missing Program: The program specified in the error message (&1) is not available in the system. This could be due to it not being installed, being deleted, or being incorrectly referenced. Authorization Issues: The user executing the program may not have the necessary authorizations to access the program or the related objects. Incorrect Configuration: The configuration settings for the data migration or conversion process may be incorrect, leading to the system looking for a non-existent program. Transport Issues: If the program was recently transported from another system, there may have been issues during the
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