could not turn on the Multicurrencies function because there is no home currency can be selected from the pull down menu

Hello waikei0612,

I've read through this thread to bring myself up to speed with what's going on with your QuickBooks Desktop 2020 and the multicurrency feature. I see my colleague suggested the steps to check for data damage and that you have some additional questions about that. I can explain what data damage means and why it's a good thing to check.

Data damage can impact a company file in a number of ways, such as causing features not to work the way they should be. The article she shared walks you through the various ways you can check for damage to your company file, and I recommend starting there as it should also guide you through resolving any issues that may arise.

As for setting up multicurrency, it doesn't sound like you're missing any steps. All it takes is going to the Edit menu, then Preferences, choose Multiple Currencies, then select the Company Preferences tab. On that screen, select Yes, I use more than one currency, then you should be able to choose the one you'd like to set as your home currency from the drop-down menu. Based on what you've outlined, it sounds like you're using the following article to guide you, but to be sure, here is our article that goes over this feature in detail: Set up and use Multicurrency

If the steps for fixing data damage don't resolve the issue you're seeing, working with our support team is the way to go. It sounds like there are more details about your situation that may be helpful in resolving this and a call or chat with support will allow us to see what you're seeing as well. Just to make sure you have it again, here's that article my colleague shared: Intuit QuickBooks Desktop software support policies

Wishing you the best with this!