When Switch Devices (Cores, and Readers specifically) are being offloaded from an account/site, it is absolutely critical that all Switch™ devices are factory reset by the site installer using the phone App. This would be the case for Switch™ Devices, transferring from one account/site to another, or when they are being sent back to Dormakaba/Distributor/Integrator.
Should the account/site be deleted from Switch™ Deck without all devices going back into a factory state, the customers will not have permission to access/change these devices. At that point, dormakaba will need to manually intervene.