There are no limits to keys for a single lock; however, Administrators should be careful when assigning keys to users and groups.
Carefully consider the number of digital keys in the field as you would for real keys — noting there is an increased risk of a security breach. Also, consider that adding 75 locks to a single lock group and assigning a group key to 2000 users also means that the system is dealing with 150k keys for a single group — this has implications on the mobile data usage of users as they download and refresh their keys on a weekly basis