I can share a way to trigger the option to not display prompts in QuickBooks Desktop (QBDT), @tracemetals.

Beforehand, the prompt messages ought to remind you about the available credits you can apply when creating transactions under the customer. To prevent this from displaying every time you create transactions, we can go to your company preferences and alter it. Here's how:

1. Go to the Edit menu and select Preferences.
2. Click General from the left panel.
3. Hit the My Preferences tab and click Bring back all one time messages.
4. Then, click OK.

After that, the application will revert to its default setup and show the option to not display the same prompts in the future. Then, we can re-open the transaction and once you're prompted about the available credits, you can then check the box Do not display this message in the future.

If the same thing happens, we can rectify this by verifying and rebuilding the data. Be sure to make a backup of your data before taking any further steps.

Verify Data:

1. Press the File menu.
2. Choose Utilities from the drop-down option.
3. Select Verify Data.
4. Tap Ok to continue.

Rebuild Data:

1. Click the File tab at the top.
2. Select Utilities from the drop-down option.
3. Choose Rebuild Data.
4. Click Ok on Rebuild has completed.

You can always visit the Community if you need further help about managing your company preferences. You can also notify me of other QuickBooks concerns. Stay safe!