Message type: E = Error
Message class:  CNVMBTCHECK - Messages for PCL Checks 
Message number: 058
Message text: &1| Sender field &2 will not be checked for existence. (cluster/pool)
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNVMBTCHECK058 indicates that a specific sender field in a data migration or conversion process is not being checked for existence due to it being part of a cluster or pool table. This typically occurs in the context of data migration projects, especially when using the SAP Migration Cockpit or similar tools.
Cause: Cluster/Pooled Tables: The error arises because the field in question belongs to a cluster or pooled table. In SAP, cluster and pooled tables are special types of tables that store data in a compressed format and are not directly accessible like standard tables. As a result, the system cannot perform existence checks on fields from these tables in the same way it does for standard tables. Data Migration Settings: The configuration or settings in the data migration tool may not be set up to handle cluster or pooled tables correctly, leading to this error.
Solution: Review Data Mapping: Check
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