COGS is related to inventory, which by definition is stock purchased and kept on hand, for sale to a customer.

Not things purchased as needed, or used in the shop to complete the job, towels etc.

Yes getting products to sell in an on demand situation is a cost of doing business, […]

Resolution for 'automotive service issue: 'Should I use billable expenses in the automotive service industry?' available: Yes.

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

For more information about resolving issues related to automotive service in Quickbooks/QBO or to get support for the issue 'Should I use billable expenses in the automotive service industry?', click the link below: