We are considering doing a batch import of some contributions from our Gala. We do not want these transactions to update the plan associated with the campaign. Has anyone found a way to control this?
This sounds like you are using the same campaign for both your gala event and your regular giving. If the gala was processed in Tessitura, expected configuration would have the gala be an elevated event. Since elevated events are a type of campaign, these contributions wouldn't affect your plan for a different campaign.