MD5 hash

To ensure that the “Payment History” file will be transferred correctly, create an MD5 message-digest and save it separately.

How to create a hash sum?

System Description Link
Unix / Linux Command line:

$ md5sum myshop_history_2014-02-15_001.csv > myshop_history_2014-02-15_001.csv.md5
http://en.wikipedia.org/wiki/Md5sum
#Create_MD5_hash_file_hash.md5
Windows / Command line Command line and drag & drop support:
MD5sums 1.2
http://www.pc-tools.net/win32/md5sums/
Windows Checksum Verifier:
incl. GUI and comparison
http://www.bitdreamers.com/de/
products/checksum-verifier

Example file

myshop_history_2014-02-15_001.csv.md5

This file contains only the hash sum

1fb5f23b88b6218ad78d1080e3694d0e

Submit that file in parallel to each “Payment history” CSV.