Hi Dave,
if you use Schema Editor 2 you create TSD2 schemas (Schema format of Tamino 2.3). You can still use and create these schemas with Tamino 3.1, but they are not visible for Tools that rely on TSD3 (Schema format of Tamino 3.1).
The recommendation is: use Schema Editor 3. It is included in Tamino 3.1.1 or available in the developer community (download)
For more information on the schema formats please check the Tamino Server documentation.
Regards, Harald
#webMethods#API-Management#Tamino