In order for assigned resources (users or contacts) to be able to update their tasks, Inspire Planner requires that the Organization-Wide Default for the Activity object is set up for sharing. This means that the Organization-Wide Activity object will need to be set to 'Controlled by Parent'.
Setting the object to 'Controlled by Parent' means that a user can perform a certain action (view, edit, delete, etc.) if they have permission to perform the same actions on the record associated with it.
This article will walk you through how to set Organization-Wide Sharing for the Activity object to be 'Controlled by Parent'.
Start with the video below:
This section will walk you through how to set Organization-Wide Sharing for the Activity object in the Salesforce Lightning Environment.
This section will walk you through how to set Organization-Wide Sharing for the Activity object in the Salesforce Classic Environment.