Qb desktop to QB online

Hello @Awalker,

QuickBooks will replace any existing data during the conversion process. However, you can use the same QBO login credentials to sign in to your account.

Here's an article that'll walk you through the process: Move your QuickBooks Desktop file to QuickBooks Online.

I'll also share with you this awesome article about your first hour with QuickBooks Online which I'm sure you'll find helpful. It has steps that'll guide you to make sure that by the end of the hour, everything in place and ready to handle the account tasks for your business.

Please know that we're here if you have other questions or concerns; so don't hesitate to post anytime. Thanks for visiting us today and I wish you have a wonderful day ahead.

@Awalker 

It depends on how many company file you have. If you have 2 different businesses, you should open a second QBO account prior to migrate you data.

https:// quickbooks.grsm.io/US

https:// quickbooks.grsm.io/us-promo

Otherwise, you need to utilize a 3rd party tool to merge the data. i.e TPExporter for Desktop, TPImporter for Online.

https:// transactionpro.grsm.io/qbo