I have two more questions/consideration:

What does “mileage” have to do with the question of Test Kits?

And your Inventory Item shows you have Duplicated the Inventory Asset account; see the Asterisk? Someone has “gotten in the way” of the accounts QB makes Automatically. This can be addressed.

Resolution for 'accounts QB issue: 'Why don’t Cost of Goods Sold items show up as an option in mileage tracking?' available: Yes.

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

For more information about resolving issues related to accounts QB in Quickbooks/QBO or to get support for the issue 'Why don’t Cost of Goods Sold items show up as an option in mileage tracking?', click the link below: