I have just upgraded to Quick Books Plus When does the data transfer/migrate happen?

Hi barrow1hutchison,

Welcome to the cloud version of QuickBooks. It's important you're able to access your data so you can start to reap the amazing benefits of the features offered in QuickBooks. I'll be happy to share more info so you're on the right track with your work. 

Depending on how you've migrated your data, you should start to see your data in QuickBooks right away. To make sure we're both on the same page, I encourage you to check out the following article here that provides more info about migrating your data to QuickBooks Online Plus. 

Give this a try and let me know how you make out. I'll be on standby in case you need additional support.