Message type: E = Error
Message class:  ALSMEX - Message Class for Legacy Data Transfer 
Message number: 006
Message text: Upload of file & was successful
File &v1& was uploaded successfully.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
In the next step, you can start the legacy data transfer in test mode
or production mode.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message ALSMEX006 indicates that the upload of a file was successful, but it may also imply that there are issues related to the data contained in the file or the subsequent processing of that data. This message is typically associated with the LSMW (Legacy System Migration Workbench) tool, which is used for data migration in SAP.
Cause: Data Validation Issues: The file may have been uploaded successfully, but the data within it may not meet the required validation criteria for the target fields in SAP. Mapping Errors: There could be issues with how the fields in the uploaded file are mapped to the fields in the SAP database. Incomplete Data: The uploaded file might be missing required fields or contain incorrect data formats. Post-Upload Processing: The message may indicate that while the upload was successful, the subsequent processing (like batch input session creation) may have encountered issues.
Solution: Check the Data: Review the contents
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