Message type: E = Error
Message class:  CNV_20700 - Material number conversion 
Message number: 063
Message text: New material number = Space; original material number = &1
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The SAP error message CNV_20700063 indicates that there is an issue with the material number during a data migration or conversion process. Specifically, the error states that the new material number is being set to a space (blank), while the original material number is provided as &1, which is a placeholder for the actual material number.
Cause: Blank Material Number: The primary cause of this error is that the system is attempting to assign a new material number that is blank or consists only of spaces. This can happen during data migration when the mapping of old material numbers to new ones is not correctly defined or when the source data has missing values. Data Quality Issues: The source data may have inconsistencies or missing entries, leading to the generation of a blank material number.
Configuration Issues: There may be issues in the configuration of the migration tool or the mapping logic that leads
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