Let me help you with that.

  1. Click Expenses in the left-hand menu and then click Suppliers
  2. Click on the Supplier you wish to Add an ABN for
  3. Fill in the ABN number in the Business ID No. field
  4. Click Verify if you wish to verify the ABN
  5. Click Save

Resolution for 'ABN issue: 'Supplier ABN not showing in supplier window' available: Yes.

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

For more information about resolving issues related to ABN in Quickbooks/QBO or to get support for the issue 'Supplier ABN not showing in supplier window', click the link below: