QB Issue Resolution:

Hello there =)

You can sub-divide by class but you’ll need that feature turned on first.

Here’s how:

Click on your company name in the top right > Scroll down to the categories section > Turn on track classes > Save > Done

Now, you should see that option. Please let me know if you need anything else.

Resolution for Issue 'How do I create a budget by class in QuickBooks Online?' available: Yes (Solved).
Source: Intuit Community forum.

How do I create a budget by class in 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.

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