Unblocks a Device Add-In on a specific database. Sets the Add-In status back to Active in MyGeotab and MyAdmin. Devices are not auto-re-enrolled — use the existing enrollment APIs if you need to enroll devices after unblocking. Only reseller users can call this method. This is the same operation exposed by the L1 Device Add-In Management UI's "Unblock" action; it is intended for programmatic unblocking without visiting the MyAdmin UI.
Only applies to Add-Ins currently in Blocked state. Idempotent when already Active (returns Success=true without re-issuing MyGeotab calls). Throws when the Add-In is in any other state (e.g. Inactive) — this API does not re-activate deactivated Add-Ins; use the existing install/enrollment APIs instead.