https://nishantrana.me/2022/02/09/how-to-import-data-from-local-data-files-to-dynamics-365-customer-insights/To set up the trial of Customer Insights, open the Dynamics 365 Free Trial Page and scroll down to Dynamics 365 Customer Data Platform section
Click on Try for free
Sign in with your work account or the Dynamics 365 trial account created and click on Get Started
As a first step, it asks for specifying the region for the communication preferences.
For the trial, let us choose the Audience Insights option.
It opens the Demo environment having the sample data. We can explore and understand the features with the sample data or we can start a trial.
Let us select the option Start trial in the tool bar to connect it to an existing CRM / Dataverse Environment.
Enter the basic information requested. Make sure you have selected the correct region else you might get unable to create an environment error later.
The data storage option comes as disabled.
Specify the Dataverse / CRM environment’s URL. (here I am logged in with System Administrator user who is also the Global Admin)
Finally, review the information and click on Create.
This will configure a 30 day trial against the CRM / Dataverse environment.
Now we are ready to explore it further.
Hope it helps..