QB Issue Resolution:
on the vendor listing there is a gear at the top right of the listing, use it and select show inactive
Resolution for Issue 'how to see inactive vendors?' available: Yes (Solved).
Source: Intuit Community forum.
how to see inactive vendors?: 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 Quickbooks
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