User Manager/Public ID
Each subscriber already has an unique field - login. But for security reasons another field - Public ID is used. Note: In earlier versions (until version 2.9.31) login is used to identify subscriber.
- Search for a customer with specified public ID. If no customer found, the default (first) subscriber is used. Otherwise proceed to the next step;
- Search for a subscriber (owner) of the customer just found. Every customer has its subscriber, so this procedure always finds the result.
Only subscribers have permissions to edit customers. That means, subscriber must configure public IDs for all sub-customers.