Why can't I put classes in with apple phone with inputting receipts?

I'd be delighted to assist you with assigning classes to your receipts, @fandsinvestment. 

When reviewing the receipts, you'll want to make sure you have clicked the Optional fields dropdown to see the Class section. Here's a screenshot for your visual reference:

If the issue persists, let's refresh the data of your QBO mobile app to remove the older cache that causes this odd behavior. Here's how:

1. Go to Settings, then tap General.
2. Tap iPhone Storage, then tap the QuickBooks Online app.
3. Tap Offload App.

I'd also suggest uninstalling and reinstalling your QBO mobile app to start in a fresh state if the problem continues.

In the meantime, you can review your receipts using the browsers on your mobile devices. Check out this resource for the requirements to access QBO seamlessly: QuickBooks Online access for mobile devices.

Once everything's good, you can visit these articles to learn more about the receipt snap feature:

• Upload your receipts and bills to QuickBooks Online
• Email receipts and bills to QuickBooks Online

If I can be of any additional assistance with other concerns about receipts, kindly add a comment below. I'm available around the clock to provide appropriate information.

No it didn't fix the problem

I uninstalled the app and reinstalled. Now I can not find all my accounts to input my receipts.

I appreciate the steps you've performed to get this fixed, fandsinvestment.

Since the issue persists, you can still access your QuickBooks Online account through a web browser on your computer or phone. QuickBooks Online supports several different browsers, so you can continue putting classes in receipts. Please see this article to see the list including versions: System Requirements for QuickBooks Online, QuickBooks Online Accountant, and QuickBooks Self-Employe....

Also, I'd suggest contacting our Customer Support team. They can further investigate why you can't find your accounts to enter into your receipts. To reach them, follow the steps below:

1. Sign in to your QuickBooks Online company.
2. Select Help (?).
3. Select either tab to get started:
   • Assistant: Get quick, personalized answers. Select a suggested option, or type a question or topic you need help with. If you decide you need further help, you can still Talk to a human.
   • Search: Search the QuickBooks Online knowledge base directly, or select Contact Us and choose a way to connect with us:
     • Start a chat with a support expert.
     • Get a callback from the next available expert.

To learn more about taking a photo of your receipts while using the mobile app, see these articles:

• Snap a photo of your Receipt or Bill on your Mobile Device
• How to Email your Expense Receipts and Bills to Get them into QuickBooks Online 

If you need help with anything else related to receipts, leave a comment below, I'm happy to assist anytime!