After completing a migration, what follow-up action should be taken to identify any issues?

Conducting a smoke test is a crucial follow-up action after completing a migration because it helps ensure that the critical functionalities of the system are working as expected. A smoke test involves running a set of preliminary tests to verify that the most important features are operational after the migration process. This helps identify any major issues that may have arisen as a result of the migration before users start utilizing the new system extensively.

The smoke test allows teams to quickly assess the integrity of the migration and determine if any immediate corrective actions need to be taken. It acts as an early warning system to catch significant problems that could impact user experience or functionality, giving the organization a chance to address them proactively.

Other actions like notifying users of completion, reassessing user permissions, or archiving old channels, while important in their own right, do not directly help in validating the success of the migration itself and ensuring that everything is functioning as intended from a technical standpoint. These tasks can follow the completion of successful smoke testing but are not as critical in identifying immediate migration issues.