Problem

Typically, when you create a new Activity type of entity and you want a Create button for the same, it just appears in the Other Activities fly-out button and not on the Main ribbon in Activities to be specific.

And you can’t simply drag it out in the Ribbon Workbench since it is a dynamic button.

So, in this blog, I’ll create a button to open a new Create record form for my Activity type of entity called Assignment.

Customization

1. Create a new Solution in your D365 environment and only add Activity entity into it.
   
2. Load this solution into Ribbon Workbench and on the Main ribbon, add a button and give it a Name and Icon
   Note: Since there was no space in the Activity Ribbon, I had to sacrifice on of the least used Activities I had.
   
3. On that, I created a new Command and provided the below parameters –
   
   Make sure you enter the name of your entity in String Parameter shown above correctly, in my case, it is new_assignment.
   
4. Attach this Command to the Button
   
5. Now Publish and check.

Create Assignment Button in Action

Now, when I go to Activities, I see my button called Assignments

And when I click it, it open the full form for the Assignment entity

Hope this was quick!