How to connect Drupal Commerce: step by step

You need: Drupal admin access and Commerce installed. This one takes a little technical comfort, so ask your developer if unsure. Connecting needs Starter or above. Applying a price to your store needs Premium or above.

Step 1. Enable the modules

1. 1In Drupal open Extend.
2. 2Tick JSON:API and HTTP Basic Authentication, then click Install.
3. 3Open Configuration, Web services, JSON:API and allow write operations (Accept all JSON:API create, read, update, and delete operations).

Step 2. Create the API user

1. 1Open People, then Add user. Username: costcal. Use a long random password.
2. 2Create a role that can edit Commerce product variations and give it to this user.
3. 3Do not reuse this password anywhere else.

Step 3. Paste it into CostCal Pro

1. 1Open the Stores tab and choose Drupal Commerce.
2. 2Site address: the address customers visit, for example https://yourstore.com.
3. 3Enter the API username and password.
4. 4Click Connect store.

Each product variation is listed as its own row and keeps its own currency.