Create a Pmax dashboard in Google ads step by step:
- Go to Reports > Dashboards > Create a new Dashboard on the + Button


- Click on the + button on one of the boxes, create a new report, and add the following metrics

Add on the filter option: Campaign type - Performance max

Save the report and name it: Performance max performance
- Create a new report with the following metrics:

Add on the filter option two filters:
- Campaign type: Performance max
- MC ID: Choose the Merchant Center account