It is important to setup the Magento API permissions and Optiply permissions to have a working integration. Several steps are needed, which are listed below.
Go to the Admin backoffice, System > Integrations
- Edit the Integration already created and used to send credentials
- On Basic Settings > API, set
Resource Access - All (for everything)
or Custom (for individually choose permissions by resource)
For a Custom setup, we should have at least:
stockStatus (Stores > Settings > Configuration > Inventory Section)