When evaluating the results of this type of campaign, keep in mind that P. Max campaigns take 6-8 weeks until they actually begin to achieve optimal results. Campaigns are based on machine learning, and the initial learning phase can last several days. Subsequently, the campaign collects data for several weeks and improves the display of advertisements.
However, if you want to achieve the best results, you need to check the performance of the assets after a few weeks and find out if you should improve the campaigns.
Regular analysis of spend on potential conversions is also important. However, when analyzing performance through the platform, unlike previous campaign types, Google limits you on the number of metrics you can monitor.