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The import file must include all the necessary columns and the correct column names. The column names in the import files are case sensitive, for e.g. CreateiniManage is incorrect, the correct column name is CreateInImanage. Read here for Read here for more details on the CSV parameters.
The import file must be correctly formatted - the file should not any contain extra lines.
Check the file for any missing /invalid parameter values - all the unique metadata must be specified in the file. Any missing unique value(s) or invalid parameter(s) will cause the job to fail.
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