An administrator at AW Computing noticed that a custom field on the Contact object was changed from text to text area. What tool should the…

The Setup Audit Trail is a feature that tracks the recent setup changes made by administrators in a Salesforce organization. This includes modifications to metadata such as creating or modifying custom fields, changing their data types, or adjusting page layouts. When a field's type is changed from text to text area, this is a metadata change, not a data change within a record. The Setup Audit Trail provides a chronological log of these administrative actions, showing who made the change, when it was made, and what was changed, making it the appropriate tool for this investigation.

A. Developer Console: This is an integrated development environment used for writing and debugging Apex code, SOQL queries, and Lightning components, not for auditing administrative setup changes.
B. Field History Tracking: This feature tracks changes to the values within specific fields on a record over time, not changes to the field's underlying metadata or properties.
C. Debug Log: This tool captures detailed information about specific transactions, such as Apex code execution and API calls, for troubleshooting purposes, not for tracking metadata modifications.

- Salesforce Help. (2023). Monitor Setup Changes with Setup Audit Trail. Salesforce. Retrieved from https://help.salesforce.com/s/articleView?id=sf.adminmonitorsetup.htm&type=5. (This document states, "Setup Audit Trail tracks the recent setup changes that you and other admins have made to your org... It lists the 20 most recent setup changes... including... Custom fields").

- Salesforce Developer Documentation. (2023). Audit Trail. Object Reference for Salesforce and Lightning Platform. Retrieved from https://developer.salesforce.com/docs/atlas.en-us.objectreference.meta/objectreference/sforceapiobjectssetuphistory.htm. (This describes the underlying SetupAuditTrail object available via the API, which powers the UI feature).