I'm trying to make a deposit but the program changes to previously entered deposit amount - how do I stop this?

Hi there, @cynthia8001. I'll give you some solution to the issue you're encountering with bank deposits in QuickBooks Online.

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If it works, you can now proceed to creating a bank deposit in QuickBooks Online.

Moreover, you can also read this article for the complete details: How to record payments, deposits, and fees

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@cynthia8001 can you try to check if you have this settings turned on? Go to Accounts and Settings > Advanced > Automation > Pre-fill forms with previously entered content. If it's turned on, try turning if off and then save. Then try to make a deposit again and see if it still QB still fills the bank deposit. :)