Before you start recording, make sure that there will be no additional changes to the UI of the application under test, at least until your tests are complete. This requires good communication with the development team. If the UI changes after you record your test scripts, your scripts will likely be unusable.
Also, make sure that you have the ability to back up and restore any databases that are used in your testing. Because changes to database content often lead to differences in UI content, for example more or different items in lists, different query results, and other, databases need to be returned to a baseline state before the start of each test cycle.