Thanks for reaching out in the Community!
For training regarding Canvas Credentials/ Canvas Badges, try accessing the Training Services Portal. This is located inside the Help Menu in your Canvas instance. Click Help> Training Services.
This should lead you into the professional development instance, and you should be able to see the Credentials Training Courses inside the Products tab.
The courses are entitled 'Canvas Credentials Onboarding' and 'Canvas Credentials Mastery' however, you can also look under the Live Training Calendar tab to view live training options.
If you are ever needing references for features within Canvas Badges/ Credentials, please see our documentation at https://community.canvaslms.com/t5/Canvas-Credentials-Badges/ct-p/canvas-credentials-badges?tab=rece...
Hope this helps! If you ever need assistance inside Canvas Badges/ Credentials, please reach out to our support team at firstname.lastname@example.org