For any questions regarding the status of a vendor please email vendor maintenance at vendormaintenance@columbia.edu or contact a member of the vendor maintenance team.

Fax Policy

Please do not fax any paperwork or documentation to vendor maintenance unless a vendor maintenance specialist requests it.  This includes form w-9 and updated address information.  Our fax number is 854-9352.  

Need more help? 

Contact Us: AP Service Center, AP Staff Directory.