Currently, when you create a new customer in the POS price groups are not defaulted from the default retail customer in the POS until the customers job is ran.  I recommend that price groups should be defaulted upon customer creation from the default retail customer.  Below is an example that demonstrates why this is needed:

1.  A new customer is created in POS.  No discount is applied, however there is an active trade agreement for the price group of the default retail customer. 

2.  If you view the created customer in D365, all price groups are populated with the same values as the default retail customer.

3.  Run Customers job from distribution schedule.

4.  Run the same transaction with the customer you created.  You will notice a discount is applied.

This should be done when the customer is created, not when a job from the distribution schedule runs.  Please up-vote to make this possible.