Message type: E = Error
Message class:  CNV_PE - General messages for posting engine 
Message number: 249
Message text: Sender cannot be excluded
Worklist item &V1& cannot be excluded from processing in the sender
system due to its status, an existing lock, or the item is blocked for
processing.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_PE249 "Sender cannot be excluded" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system is trying to exclude a sender (such as a source system or data object) that is required for the migration process.
Cause: Mandatory Sender: The sender you are trying to exclude is mandatory for the migration process. This could be due to dependencies in the data model or relationships that require the sender to be included.
Configuration Issues: There may be configuration settings that are not correctly set up, leading the system to believe that the sender is necessary. Data Integrity: The sender might be linked to other data objects that are essential for maintaining data integrity during the migration.
Solution: Review Migration Settings: Check the migration settings to ensure that the sender you are trying to exclude is not
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