Business Process Flow not displaying in Unified Interface–Dynamics 365

We have a Business Process flow on Opportunity entity. But, not able to see it from Unified Interface.

Reason behind this is we missed to add “Business Process Flow” while creating App. CRM could not automatically consider this. We should add it explicitly.

Please follow below steps to do:

1. Navigate to Settings > My Apps >

2. Click on existing app (Where you couldnt see BPF)

3. Open in App Designer. 

4. Select Business Process Flows component from designer.

5. Select the required BPF from list of BPF’s those displayed right side.

6. Save and Publish

Hope this helps someone