Message type: E = Error
Message class:  CNV20600 - message class for package 20600 
Message number: 187
Message text: Update run: Tables SCMG_T_CASE_ATTR and UDMCASEATTR00 are modified
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The SAP error message CNV20600187 indicates that during an update run, the system detected that the tables SCMG_T_CASE_ATTR and UDMCASEATTR00 have been modified. This typically occurs in the context of data migration or system conversion processes, particularly when using SAP's Conversion Tools or during the execution of a specific migration project.
Cause: Concurrent Modifications: The error usually arises when there are concurrent modifications to the specified tables while the update run is being executed. This can happen if other processes or users are updating the same tables at the same time. Data Consistency Issues: The system may have detected inconsistencies in the data due to changes made to the tables after the migration process started. Locking Issues: If the tables are locked by another transaction or process, it can lead to this error.
Solution: Check for Concurrent Processes: Ensure that no other processes are modifying the tables SCMG_T_CASE_ATTR and UDMCASEATTR00 during the update run. You may
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