The user code is invalid error message is caused by an existing code that may be in conflict with a code you wish to add. The following are the typical causes of this conflict.

The preceding error appears when either:
Note: If the user does not have a preference, click Generate Code to generate a random available code for the user.

The preceding error appears when a Kwikset lock is attached to the system. Due to some Kwikset locks having two digits per button, there is an entry pattern limitation that decreases the number of possible codes on the system. For example, 1-3-5-7 has the same entry pattern as 2-4-6-8 so only one of these codes would be able to be used at a time. This limitation applies to all Kwikset locks regardless of physical button layout.
Note: This applies to all user codes on the account, not just user codes added to the lock.