Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 749
Message text: Blank entrie(s) were deleted from ALV
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The SAP error message CNV20551749, which states "Blank entry(ies) were deleted from ALV," typically occurs in the context of data conversion or migration processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This message indicates that the system has identified and removed blank entries from the ALV (ABAP List Viewer) output.
Cause: Blank Entries: The primary cause of this error is the presence of blank or empty entries in the data set being processed. These entries do not contain any meaningful data and are therefore removed to ensure data integrity and clarity in the output. Data Quality Issues: The data being migrated or transformed may have quality issues, such as missing values or improperly formatted records, leading to the generation of blank entries. Configuration Settings: Certain settings in the data migration tool or ALV configuration may dictate how blank entries are handled, which can lead to their deletion.
Solution: Data Validation:
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