Calculate Account Engagement Campaign Influence When an Opportunity has Multiple Contact Roles

As described in this article  and this article, the Account Engagement Campaign Influence model is a way to give a campaign credit for a closed opportunity. This can help the marketing team identify which campaigns are performing well and leading to closed deals and revenue. The influence model will determine which campaign is attributed as influencing the opportunity. The following scenarios describe which campaign is selected when there are multiple contact roles that are in multiple campaigns.

First Touch
Influence will be attributed to the campaign associated to a contact role who's Campaign Membership Created Date is earliest of all contact roles associated associated to an opportunity.

Last Touch in B2BMA
Influence will be attributed to the campaign associated to a contact role who's Last Modified date of the campaign member is last for all contact roles associated to the opportunity.

Even Attribution in B2BMA:
Attribution is divided evenly across all campaigns associated with each contact role on the opportunity. As an example, imagine a scenario where there is a contact associated with four campaigns. Each campaign would receive 25% of the attribution.