Replicating Customer and Vendor Portal data
All sites in the portal site group must be linked and replicated using standard replication rules. For the Vendor Portal, the A/P replication category must be replicated across all sites in the Vendor Portal site group. For the Customer Portal and Reseller Portal, the A/R, Centralized Order Entry, and Customer Portal replication categories must be replicated across all sites in the Customer Portal site group.
For more information about setting up multi-site portals, see Portals.