List all users and accounts as a SYSTEM OPERATOR

Please see the instructions below, in order to list all users via REST API as an operator:

1. Create a session for a User (operator in this case- Basic Auth) - https://<url>/sys/v1/session/auth 
   
   
   
   
   
2. Select the account - https://<url>/sys/v1/session/select_account
   with acct_id
   
   
   
   
   
3. List all users - https://<url>/sys/v1/users?all_customers=true