Go to: https://trials.dynamics.com/
Let’s create your Sales Pro trial in these easy steps (below).
Scroll down to the highlighted option.
Go to Admin center.
Click on New.
Select Trial (subscription-based) as a Type.
You need to select a database and app in the same step.
If you fail this multiselect turns into a dropdown as a punishment.No jokes.
What to do if it fails first time telling you don’t have the correct license? Don’t give up!
Try to create an environment again. The same steps but different.
Create database option is disabled. Change Type to Sandbox, tick Create database to Yes. Change Type back to Trial (subscription-based).
The same but different. It’s a dropdown for the module to select.
Click on Save. Pray.
Congrats! Click on the environment then Open environment.
Following these easy steps you will be able to setup (at least) Sales Pro app on your trial.
I haven’t checked if it works the same way for other apps.