Hopefully this is something simple. I created a Power Apps portal using the Dynamics 365 Customer Portal template. I then created a custom table in the dataverse. However, when I go to Lists and add a list, the custom table does not show up in the list of available tables. So, I looked at the Solutions in make.powerapps.com and the solution shows up as a Managed solution so I can't add tables to it there.
So, the question is, how do I get my custom table to show up and be available for the Power Apps portal? Did I do something wrong in deployment?