Northern Trail Outfitters (NTO) wants to discuss an enhancement to Campaigns with the engineering, marketing,...

The reference that the business analyst should consult to understand the integration pattern is a Solution Architecture Diagram. A Solution Architecture Diagram is a diagram that shows the high-level design and components of a system or solution. A Solution Architecture Diagram helps to understand the integration pattern by showing how different systems or applications are connected and interact with each other, as well as what data or information is exchanged between them. A Solution Architecture Diagram also helps to identify the scope, requirements, dependencies, and risks of an integration project or enhancement. References: https://trailhead.salesforce.com/content/learn/modules/salesforce-business-analyst-certification-prep/solution-design