There's a moment in every IT professional's day when a problem stops being a puzzle and becomes a test of patience. This post, from a user wrestling with macro-enabled Excel files that work for local users but fail for domain users, is that moment. The error is specific, the behavior is consistent, and the solution is hiding in plain sight. Our take? This isn't a macro problem, and it's not an Excel problem. It's a permissions problem wearing a confusing disguise.
The clue is in the file path. The error points to `C:/users/(username)/appdata/local/temp/*.tmp`, and the files in question begin with `VB*.tmp`. These are temporary files that Excel's VBA engine creates and then deletes as part of normal operation. On a local user account, the process works. On a domain account, it fails. That distinction tells you the issue isn't the macro itself, the file's security zone, or the network location. It's the environment the domain user is operating in. The most common culprit is a redirected or locked-down Temp folder. When group policy or a login script changes the Temp path to a network share or a folder where the user lacks full write and delete permissions, VBA can't create or clean up its temporary files. The macro never gets a chance to run.
The user has already done the obvious things. They've checked macro security settings, marked files as safe, and reviewed Excel-specific group policy. They've even tested saving the file locally, which worked exactly once. That "once" is another clue. It suggests that when the Temp folder happened to be writable, the macro ran. When the environment reset, the problem returned. This is why the fix isn't in Excel. It's in the user's profile and the folder permissions that govern it. The next step is to verify the Temp environment variable for a domain user, compare it to a local user's path, and ensure the domain user has full control over that directory. If Temp is redirected to a network location, that's your answer. Move it back to the local machine or grant the appropriate permissions.
What this means for you, the person reading this because you're stuck in the same loop, is that you can stop rechecking macro settings. The macro is fine. Your file is fine. The problem is that VBA's temporary files need a local, writable home. Start by opening a command prompt as the domain user and typing `echo %TEMP%`. If that path isn't on the local C: drive, you've found your problem. Then check the folder's security settings. If the user can't create and delete files there, no amount of macro trust will help. Once you correct that, the error will disappear, and you'll have learned something more valuable than any single fix: the difference between what a system reports and what it's actually telling you.