Exam Certified Integration Architect topic 1 question 74 discussion

SObject Collections: This composite resource allows for bulk operations on multiple records of the same type (e.g., Account, Contact) in a single API call. It supports up to 200 records per request, which aligns with the requirement to reduce the number of API calls by handling more records in each call. SObject Tree (D): This resource is used for creating or updating a tree of objects with parent-child relationships, which is not the primary requirement here.

Given the requirement to update Account, Contact, and other related information in one API call, the correct answer would be D. SObject Tree. The SObject Tree resource allows you to create nested records, which means you can create a parent record (like Account) and its related child records (like Contacts) in a single API call. This would be the most suitable option for reducing the number of API calls when the data volumes have increased. The other options (Batch, Composite, and SObject Collections) do not specifically allow updating related records in one API call.