Supplier, Vendor and Customer Account Setup To request access to the IP Portal or for further information, please contact your International Paper representative. How to accept your guest account invitation Here are the instructions on how to accept your Microsoft guest account invitation with International Paper. How to accept your guest account invitation How to set up Microsoft MFA Not yet on multi-factor authentication (MFA)? Click below to find out how to set it up. How to set up Microsoft MFA How to edit your Microsoft MFA methods Click below to find out how to edit your Microsoft MFA methods.How to edit your Microsoft MFA methods If you are experiencing any issues, contact your IP representative or the IT Service Desk at 1-800-309-1025.