Create admin api access code:
- Navigate: MANAGMENT->ACCESS CONTROL->ACCESS CODES
- Click: ADD CODE
- Change: Access Type = Admin API
- Click: NEXT
- Choose: Group = Admin
- Click: NEXT
- Click: ADD
Create admin api key:
- Click: Menu in upper right corner
- Choose: User profile
- Copy: API key, if field is empty click refresh icon to generate key.
- Click: Save
Save accesscode and api key somewhere, you will need them in module configuration in WHMCS.