Deploying Power apps to Microsoft Dynamics 365.

You have to take actions on the powerapps

 @Cr Bhargavi

In which domain we should follow this steps?

In the Column Properties dialog box, select the Controls tab. On the Controls tab, select Add Control. On the Add Control dialog box, in the list of available controls, select Canvas app and then select Add. On the Column Properties dialog box, in the list of controls select Canvas app, and then select the Web option. And select the Dynamics 365 there so that you would be able to connect the both the powerapps and the dynamics 365