A record page shows one saved record and its relationships. Confirm the record identifier before editing, especially when two accounts or contacts have similar names. The list may hide fields that are visible on the full record, and a relationship label may point to a different object.
Save only the requested change. Replacing an owner while updating a phone number can change access and queue responsibility. Likewise, a case Subject is data, while the field's label and requiredness are configuration. After saving, read the value back on the same record. These small habits prevent a common administrative failure: a correct change on the wrong record. The exercises include a second contact with the same display name to make that boundary explicit.