The program has long since retired & probably they deactivated those number. Call customer service & see if they can do anything for you.

Resolution for '2009 license issue: 'Quickbooks Pro 2009 license number invalid' available: Yes.

The 2009 license 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 2009 license issue yourself by looking for a resolution described in the article. If it is a complex 2009 license issue or you are unable to solve the issue, you may contact us by clicking here or by using other 2009 license support options.

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