@No_UserName_Needed
Which QB Desktop year version do they have? You can run the Condense Data utility remove old data. You may have 2 options
1. Get a condensed file with Total Targets up to 750K and you can convert your data to QBO Advanced.
2. Get a condensed file with Total Targets up to 350K and you can convert your data to QBO Essentials or Plus.
