2
I have had this challenge (mass updates from marketing cloud) before and could solve it with the SFSC Bulk API.
Journey Builder does not leverage the bulk API, which means JB is considerably slower than the speeds you could achieve with Bulk API.
I tested the JB throughput once with Campaign Members, and it was somewhere around 200 - 400 records per minute. ...
1
As EazyE pointed out, updating all your records with JB can be very time consuming and will certainly affect your other running Journeys.
To answer your question, the API calls coming from SFMC through the connector will not count towards the API Limits.
Having done several hundreds of thousands of updates using Salesforce Activities, I can tell you that ...
1
The problem lies in your Apex class. You were getting the system.stringException. See the image below. It is because you were assigning a string value to ID type field in your apex method(Id result = '';). So when your trying to assign an empty value for Id field we have to specify null keyword instead of an empty space('')
Replace your apex method with ...
Only top voted, non community-wiki answers of a minimum length are eligible
