The Provider Account Territory Information (API: AccountTerritoryInfo) object is the standard object in Salesforce Life Sciences Cloud designed to store territory-specific summary data for an account. When an HCP is assigned to multiple territories, a separate Provider Account Territory Information record is created for each assignment. This object is the ideal place to store custom rollup fields like "Year-to-Date Visit Count" that need to be calculated and viewed independently for each territory the HCP belongs to.

A. Provider Account Territory Summary is not a standard object name in the Life Sciences Cloud data model for this purpose.

B. User Territory Affiliation Information relates a user (sales rep) to a territory, not an account (HCP), and is not used for storing visit counts.

1. Salesforce Life Sciences Cloud Developer Guide. (2023). Key Objects for Life Sciences Cloud. The AccountTerritoryInfo object is described as storing "information about an account in a territory, such as territory-specific fields and metrics."

2. Salesforce Help. (2023). Life Sciences Cloud Data Model. The entity relationship diagram shows AccountTerritoryInfo as the junction object linking Account and Territory, intended for territory-specific details.