Declarative Lookup Rollup Summary Tool and Custom Metadata | Andy in the Cloud
Relationship Criteria Fields: Field ResponseStatus does not exist on the child object. · Issue #814 · SFDO-Community/declarative-lookup-rollup- summaries · GitHub
Salesforce Rollup Summary Field | Free Salesforce Training
Admin Tools vs Coding: Take your Rollup Summaries to the Max — Arkus, Inc.
New Release: Declarative Rollup Summary Tool Community Powered! | Andy in the Cloud
Custom Roll-Up Summary Field via APEX | CloudsKC
Roll Up Summary Field In Salesforce | WedgeCommerce