From the left side menu in Dynatrace, pick the dashboard menu.
On the dashboard page, click the new dashboard button.

Provide a dashboard name like Cloud Migration Success
On the blank dashboard page, click the settings. Then click the advanced settings link to open then settings page

Referring to this picture, follow these steps:
dashboard JSON menu.owner field to be the email that you logged into Dynatrace with or you will not be able to view it.
After you edit the email, then click the Revert Dashboard ID button. After you click the Revert Dashboard ID button, click the Save changes button.

Click the Cloud Migration Success bread crumb menu to go back to the dashboard page

You should now see the dashboard

Now you need to edit the dashboard and adjust the tiles with the SLOs and databases in your environment.
On the top right of the page, click the edit button and then follow these steps:
frontend (monolith-frontend) serviceDone button
frontend (dev-frontend) in the Service properties windowDone button to save the dashboard