The business analyst should log a defect for the page layout change and discuss it with the DevOps team to address the issue of one of the minor changes to the Account page layout for the project being missing. A defect is an error or flaw in an application that causes it to deviate from its expected behavior or result. Logging a defect for the page layout change can help document the issue, its impact, and its priority, and assign it to someone responsible for fixing it. Discussing it with the DevOps team can help understand why the change was missing, how it can be resolved, and when it can be deployed. Making the page layout change directly in UAT so the client can begin testing is not a good option because it would bypass the development process, create inconsistency among environments, and introduce potential risks or errors. Asking the project manager to reschedule UAT until after the defect is resolved is not a good option because it would delay the testing schedule, impact the project timeline, and reduce customer satisfaction. References: 1 https://trailhead.salesforce.com/en/content/learn/modules/user-acceptance-testing-video/learn-about-user-acceptance-testing