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1) Place that zip file or csv in the directory that was configured by the attribute: System.Customer.UserImportFilePath.
2) Done!
The background thread will check if there is a file in that directory. Then the following will occur:
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3) The zip/csv file is moved up one directory to a folder (set by the attribute: System..\\PreviousUserUpload\\ Customer.UserImportBackupFilePath) to save it in case of errors during processing.
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