QB Issue Resolution:

There isn’t a way to transfer funds between classes. You can only transfer funds between accounts. However you can assign classes when you transfer funds using journal entry (please see screenshot below).

Fill me in if you have further questions.

Resolution for Issue 'How do I transfer funds between classes (I use them for fund balances)? I only see the option to transfer between asset accounts. I’m using Quickbooks Online' available: Yes (Solved).
Source: Intuit Community forum.

How do I transfer funds between classes (I use them for fund balances)? I only see the option to transfer between asset accounts. I’m using Quickbooks Online: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for between classes
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for between classes [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.

Get 50% off Quickbooks Online

Click Here for 50% off!

Additional Support Options: