When making changes to the WBS, that means adding, deleting or editing existing weight groups, you have two alternative ways of doing it:


Use the designated GUI for editing the WBS, see this help article: https://shipweight.com/wp-content/uploads/software/SWwebhelp/index.html?documents_defineweightgroups.html

Restart ShipWeight for the WBS to be updated.


Alternatively you can do it by going via the system database tables.  See this help article: https://shipweight.com/wp-content/uploads/software/SWwebhelp/index.html?documents_customizingtheshipweightsystemdatabase.html