Why can't I assign a receipt as a expense on the mobile app? When I purchase something, I want to be able to snap the receipt and assign it to a certain job!

Thank you for posting here in the Community, @flashelectriccom.

I can provide clarifications about adding receipts in QuickBooks Online.

Right now, you can only use the mobile app to snap and upload receipts and bills. However, to add them to your books, you'll need to sign in to your account via a web browser.

Please know your voice is important to us, and we take customer’s suggestion as an opportunity to guide us on which area of the product we need to improve on. To keep you in the loop about the latest features being rolled out, visit the QuickBooks Blog page.

For additional reference, I've attached an article you can use to know more about how receipts work in QuickBooks:

• Capture and categorize receipts and bills

• Email receipts and bills to QuickBooks Online

Let me know in the comment section below if you have any other questions. Have a great day ahead.