This is used to delete a maintenance company that had been added in error. This task is only available if the maintenance company has not been used on a Work Order, Inspection or AR Invoice. If a maintenance company has been used and you no longer want it to appear in Purchased By drop down lists, you can make a Maintenance Company Inactive by deselecting the Active parameter on its Export Information Setup.
System Administration 
 
 Accounting Setup Tab 
 Export Information Setup Tasks 
 Delete Maintenance Company Export Information
Click Finished to delete the selected maintenance company