Allow me to step in and add some information about adding discounts to past invoices in QuickBooks Online.

 

If you’re applying discounts to old invoices, you can use credit memo and apply it as a payment. You can follow AdrianRose_A’s steps to get your work done.

 

Currently, QBO does not have an automated discount […]

Resolution for 'AdrianRose issue: 'Discounts with payment enter quickbooks online' available: Yes.

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

For more information about resolving issues related to AdrianRose in Quickbooks/QBO or to get support for the issue 'Discounts with payment enter quickbooks online', click the link below: