I can share some helpful tips and tricks to migrate your QuickBooks Desktop Enterprise Solutions: Non-Profit 2022 Edition to QuickBooks Online, @BethR_Ballentine.
I'm listing them down to make sure I got you covered:
On the other hand, you mentioned earlier that you don't see the built-in conversion tool. For QBDT Enterprise, our developers keyed the steps to migrate your data. Please follow my directions below:
I like you to check this article for more insights about migrating QBDT data to QBO: Move your QuickBooks Desktop file to QuickBooks Online.
Once all is good, please check out What to do after converting from QBDT to QBO article to check and compare financial reports. In addition, you may notice differences and wonder about how books appear. Take a look at this article for more info: Learn how features and data move from QuickBooks Desktop to QuickBooks Online.
I'm still here if you need more data migrations assistance with your company file to the online version. Anytime I can help. Take care always, and more power Beth!