RZonar requires the Zonar company, username, and password to be set as environment variables. This function checks to make sure these are available and gives instructions for setting them if they are not.
Arguments
- customer
Zonar customer id, retrieved from ZONAR_CUSTOMER environment variable by default but can be overridden here.
- user
Zonar username, retrieved from ZONAR_USER environment variable by default but can be overridden here.
- pass
Zonar password, retrieved from ZONAR_CUSTOMER environment variable by default but can be overridden here.