You can use the username of "test" and any password to use default test credentials (only when not in Production mode).
+ This allows you to put in your production password and simply replace the username with "test" to use the API default test credentials.
+ (as of 2019-07-28 it is known that actual credentials will not work on the test environment, and the test environment is not available at all times of the day)
Example:
+Country Name,Country,2,5,15,32 +Belgium,BE,4.7,4.95,5.9,9.7 +Germany,DE,4.15,5.3,6.4,12.8 ++
Rating a package going to Germany weighing 4.5kg (less than 5kg) will return 5.30 EUR (converted to order currency).
+It is recommended to name the attachment appropriately (e.g. GLS_RATES_2019.csv), and find/use the same attachment on other delivery methods (e.g. with express settings and higher margin).
+