QB Issue Resolution:

You can turn on the discount feature in QuickBooks Online and apply it on the invoice.

To turn on discount:

  1. Go to the Gear icon.
  2. Select the Account and Settings option.
  3. Choose the Sales button.
  4. Click the pencil icon under Sales form content.
  5. Mark a check on the Discount check box.
  6. Click on Save.

Please see screenshots below as a reference.

Let me know how this goes.

discount_on.PNG
discount_on_invoice.PNG

Resolution for Issue 'turn on discounts in qb online' available: Yes (Solved).
Source: Intuit Community forum.

turn on discounts in qb 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 Account and Settings option
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