The reason you are getting this error (When Creating DeutschePost Shipment! API Error:{ "messages" : [ "items[0]: must not be blank", "items[0]: size must be between 1 and 50" ] } Error:The remote server returned an error: (422)) is because either Town or County field is blank against the order and DeutschePost requires this info to allow shipments to be generated. Please enter either the Town or County name against the order address and try to generate the shipment again. If you continue to get this error message, please raise a new case online and reference the title of this article.
Deutsche Post - items[0]: size must be between 1 and 50
Written by Tom Higgs
Updated over 2 months ago