Using the Online Tracking service, how does a countersignatory see a summary of all the applications for their Registered Body or those countersigned?

They will need to visit the tracking service webpage..

When the countersignatory has logged in, they should follow the on-screen instructions to find a summary of the progress of all their Registered Body's applications and a list of all their other countersignatories.

By selecting a countersignatory, they will see a summary of the progress of the applications which they have countersigned. They can then look at their applications just like they would when viewing their own summary page.