bring up the vendor list, use the funnel looking icon upper left and select show inactive

then you make it active again

Resolution for 'contractor active issue: 'How do I make an inactive contractor active' available: Yes.

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

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