Create a barter bank acct.  see this page for details.  https://community.intuit.com/articles/1146034-how-can-i-pay-a-vendor-bill-with-a-customer-invoice-or…

Resolution for 'Accounting Question issue: 'Accounting Question Help?' available: Yes.

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

For more information about resolving issues related to Accounting Question in Quickbooks/QBO or to get support for the issue 'Accounting Question Help?', click the link below: