The Full sandbox is the appropriate environment for final User Acceptance Testing when realistic production-scale data is required. Salesforce describes a Full sandbox as a replica of the production organization containing metadata and production data and identifies it as suitable for testing, staging, load testing, and UAT. The app builder should therefore move the developed components from the Developer sandbox to the Full sandbox, allow sales operations users to validate the commission calculations against representative Opportunity data, and deploy to production only after successful testing. Conducting UAT directly in production creates unnecessary operational risk. A Developer sandbox contains metadata but does not automatically contain production data at the required scale. Therefore, D follows the proper Salesforce application lifecycle and testing model.

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