The user that integrates Marketing Cloud to Salesforce has been using 20000 API calls per day for a long time. I'm not happy about that but today it used 39,000+ API calls in a morning.
This has blocked revenue generating activities that we have over API.
Why does the MC user cause such a high level of access? The MC admin says that the access should happen Once per 15 minutes but I see 1500 access per day, sometimes many times per minute.