You test and debug your add-in in two phases: the first during development and the second after it’s installed in Microsoft Access.
During development, test and debug each object as you create it. Keep in mind how your add-in will be started by the user, and test it in that context. For example, if you are creating a control wizard, test it in the context of form design.
After you test the individual objects or components of your add-in, test the overall operation. For example, determine whether:
Your add-in should work without problems while it is open as a database before you begin to test it when it is loaded as an add-in.
To test and debug in the second phase, you need to install your add-in. The following sections discuss the installation process.