Adding the Opportunity type
First, you’ll need the Opportunity object in Catalog. Salesforce object types now appear on their own once the integration is connected: open Settings → Integrations → Salesforce and check the Catalog Types list in the drawer for a Salesforce Opportunity type.

Setting up the Backlink
Finally, return to the Catalog homepage, select your Salesforce Account type, and click Edit. Scroll to the Attributes section and click “Add new attribute” again. This time, scroll right to the bottom of the list and you’ll see Salesforce Opportunity under the available Backlinks.