If you are receiving the error “A problem occurred and a valid license for this product cannot be found" while attempting to launch Sage 300 or a Payroll module, please see Sage Knowledgebase article 100472 and follow the steps in the Resolution section.  

If you are still having issues accessing Sage 300 or Payroll after following the steps in the article linked above, please give us a call at 1-800-253-1372.