Thanks for bringing this to my attention, Lizza. I've got some information about check deposit limits in QuickBooks Checking. 

The average deposit limit is up to $10,000 per transaction. However, it varies depending on the customer's eligibility. Thus, it's possible that you reached the set limit for your checking account. If you want to check your deposit limits, you can view them in the mobile check deposit flow. You can refer to the image below:
 

On the other hand, you might consider splitting the deposit into two transactions, so you don't exceed the average limit. Here's how:

1. Sign in to your QuickBooks mobile account.
2. Select Cash Flow.
3. From the QuickBooks Checking homepage, select Send Money.
4. Select Deposit checks.
5. Enter the half of the check amount. 

Here is the full article for more detailed steps in depositing checks: Use mobile check deposit with QuickBooks Checking.

Additionally, you can visit this link to learn more about the feature's frequently asked questions: Find out more about mobile check deposits.

Let us know if you have other questions about managing your check deposits or have any concerns with QuickBooks. We'll make sure we'll help you out. Have a great day!