Why will it not take my check numbers in autofill or when I put them in manually

Hi there, Bdavidson1955.

I want to make sure you're able to save the check numbers, and I'd be glad to lend a hand.

As an initial troubleshooting step, I recommend clearing the browser cache. The cache is in place to make loading web pages quicker and easier. If it becomes too full of data, it can have an adverse effect and create viewing and performance errors in the system. Clearing the cache will force a refresh and getting everything back up and running smoothly. Here's how you'd get this done in Chrome for example:

1. Click the three vertical dots in the top right corner.

2. Select More Tools, then Clear Browsing Data.

3. Change the time range to All Time.

4. Only check Cached images and files.

5. Click Clear data.

The following article provides similar steps if you're using a different browser: How do I clear my browser cache and temporary Internet files?

Feel free to follow up here to let me know how things look after giving this a try. I'll be here if you need assistance with anything else.

I could not find the three vertical dots in the top right corner, and it did it again this week.

I did your instructions this morning and it do not change anything. I am still unable to put in check numbers.

Good morning, Bdavidson1955.

Thank you for trying those steps and letting me know the outcome.

Since that method didn't resolve the issue, I recommend reaching out to a member of the QuickBooks Online Support Team. Agents have specialized tools, like screen-sharing, that will allow them to take a close look to determine what's causing the issue with the check numbers. Here's how to get in touch:

1. Click the Help button in the top right corner.

2. Select Contact Us.

3. Enter Support in the field and choose Let's talk.

4. From here you can select to begin a chat session or receive a callback at a time that's convenient for you. 

This article provides this info if you ever need it again in the future: Contact the QuickBooks Online Customer Support Team

You can let me know how the conversation goes by commenting below and I'll be here if you have any other questions.