Thanks for posting here in the Community, Matt83yl.

I need more information about the check auto import that you see in one of your client's books. Can you provide a screenshot of this? Any information can assist us in providing accurate data.

If you're referring to those bank downloads that are automatically imported and categorized, your client might have set up bank rules. For your reference, check out this article for more insights: Set up bank rules to categorize online banking transactions in QuickBooks Online.

I'll keep an eye on your response, don't hesitate to post again with more details. Have a great day.