can you please try to reinstall the client from MyStandard or www.standardinstall.com? As you mentioned maybe it's related to MacOS client issue: https://partners.hansaworld.com/forum/viewmessage/13/3376
The register for Order Classes is common for Sales orders and Service orders. When I set an Order Class to create an Activity - it works for Sales Order, while for Service Orders - not. Is any setting...
