I was just poking about in Power Platform Admin Center and was looking at my D365 environment with Marketing in. This doesn't get used often as it's just a demo system.
I noticed that Marketing was producing a lot of API calls and writing a lot of data to the database. The most written table was msdyncrm_mktactivity with ~1500 creates in a single day.

Another interesting chart was Top Plugins by Failures. Most if not all of them are for Marketing

When I do an advanced find on the table type I see 5000+ and they look like just JSON packets of info. What are they? Can we delete them? Why so many every day on a system that's hardly used?
