QB Issue Resolution:

This doesn’t help, although I solved my own issue. Apparently you have to go to the Gear icon on the invoice and add the Product/Service as an optional column.

Resolution for Issue 'I am trying to use products & services for my invoices and sales receipts for my non-profit org. They aren’t available to select when filling out the invoice. What to do?' available: Yes (Solved).
Source: Intuit Community forum.

I am trying to use products & services for my invoices and sales receipts for my non-profit org. They aren’t available to select when filling out the invoice. What to do?: 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 Gear icon
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Error Recovery for Gear icon [Canada]
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