How to i get my balance sheet to match again once i have completed the migration from desktop to online?

Hi there,

Welcome to the QuickBooks Community. I see you've made the switch to the cloud version of QuickBooks and it's vital your balance sheet is matching so you can continue to run and view reports with confidence. 

It's important to note that if you've used journal entries to apply payments to invoices, the links between journal entry credits and invoices break once imported. This causes the customer balances to be off. In order to resolve this you'll need to turn on auto-credits in QuickBooks Online:

1. Go to Settings (gear icon), then select Account and Settings.
2. Select the Advanced tab, then the Edit the Automation section.
3. Click the Automatically apply credits slider.
4. Select Save, then select Done.

Here's a helpful article that provides details on what to expect before and after: Migrating from QuickBooks Desktop to QuickBooks Online with Intuit's internal tool. In case you need additional support with this, I suggest getting in touch with our support team outside of the Community. Here's our contact details: 

• Schedule a Callback or start a Chat: click (?) in the upper right in QuickBooks Online > enter "Contact support" > choose Contact Us > provide a brief summary > select Let's Talk > choose Get a callback or Start a Chat.
• Social Media: Facebook, Twitter, and Instagram.
• Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

Let me know if this info helps. I'll be reachable in the comments below in case you have other questions. Otherwise, I wish you a great rest of the week.