If you have archived a vendor in Procore's ERP Integrations tool (Archive an integrated ERP System Vendor in Procore), you have the ability to restore it from the archive. Typically, you will only restore an archived if you plan to actively use that vendor on a Procore project. After the restore is complete, you must also link that vendor record to a Procore company record. See Link a Vendor from an Integrated ERP System with a Procore Company.