It works a bit strange to me: I created an activity with a global user. Main CRM company is 2. I work in the company 1. I cannot see anything in the calendar, however when I click the "report" button I can see the activity I have created.
Hi, Paul.
Sounds like you're talking about REST API. And that your are overwriting data with older values if B managed to read record before A finished to update it. Classic conflict resolution ...