Appropriate way as i remember from Acct 101 is to map a discount item to a Contra Sales account.

Right now, we have to create an item for sale called “discount” and then sell a negative quantity of them to reflect the effect of that transaction on the invoice.

That is […]

Resolution for 'Contra Sales account issue: 'what is the correct way to set up a discount item? typically should be a Contra-Sales item and should offset Sales.Seems hacky-setup a product,then sell a negative qty ?' available: Yes.

The Contra Sales account 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 Contra Sales account issue yourself by looking for a resolution described in the article. If it is a complex Contra Sales account issue or you are unable to solve the issue, you may contact us by clicking here or by using other Contra Sales account support options.

For more information about resolving issues related to Contra Sales account in Quickbooks/QBO or to get support for the issue 'what is the correct way to set up a discount item? typically should be a Contra-Sales item and should offset Sales.Seems hacky-setup a product,then sell a negative qty ?', click the link below: