Sometimes a vendor may be setup multiple times in the Vendor Master File.  If you find this you can easily merge the vendor codes into 1 permanent vendor code.  To merge vendors follow the steps below:

• In Enterprise go into Purchasing > Actions > Vendor Master File
• Click on the Merge Vendor button, the Merge Vendor screen displays:
  • Permanent Vendor Code - input the vendor that is going to stay
  • Vendor Code To Be Merged -  input the code that is going to be removed
  • Copy Address - Click If you want to copy the addresses from the vendor to be merged record to the permanent vendor record
• Click the Merge button