ODBC guide

Add tags to an existing work item

Adds or replaces tags on a work item by ID. Set the Tags column to a semicolon-separated list; use Operation='add' in WITH to append to existing tags instead of replacing. Optional WITH parameters can bypass rules, suppress email notifications, or validate without applying the update.

UPDATE WorkItems
SET   Tags = 'newtag1; newtag2'
WHERE Id = 6455
WITH(
	   Project='ProductTesting'
	  ,Operation='add'
   -- ,BypassRules='true'  --Useful to Update ReadOnly Fields like ResolvedBy, ClosedBy
   -- ,SuppressNotifications='true'  --Avoids email notifications on change
   -- ,ValidateOnly='true'  --Dont perform actual update - just validate	  
)