Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 148
Message text: In table STKO: STLNR=&1 with WRKAN=&2 missing in table &3
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The SAP error message CNV20551148 typically indicates that there is a missing entry in the table related to the structure of a bill of materials (BOM) or a similar object. This error is often encountered during data migration or conversion processes, particularly when using SAP's Conversion Tools or during system upgrades.
Cause: The error message CNV20551148 suggests that the system is trying to access a record in the STKO table (which contains BOM header data) for a specific BOM number (STLNR) and a specific work center (WRKAN), but it cannot find the corresponding entry in the specified table (denoted as &3). This can occur due to several reasons: Data Inconsistency: The data in the source system may not be consistent or complete, leading to missing entries. Migration Issues: During data migration, some records may not have been transferred correctly. Configuration Errors: There may be configuration issues in the system that prevent the proper linking of
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