I learned today that the out-of-the-box Timeline sync requires “External Attendees” to be mapped to “Name” on the Task object in Salesforce. You can’t unmap this, which is unfortunate enough.
To make matters worse, the mapping is hard-coded to look at “External Contact ID” on the Company Person and matches that to the SFDC Contact ID. You can’t change this. If we could, we would repoint this mapping to the “External ID” on the Person instead.
Why is this so inflexible? Now I have to identify which activities have been failing (not that easy because the GS Error Logs object only goes back 30 days) and create a rule to supplement our Activity Sync when I should just be able to make a simple configuration change in the out-of-box sync. Please consider enhancing this feature.