Some of my customers work for large organizations that we have broken down into many accounts in Salesforce. The customers who access the idea portal are associated directly with the Salesforce account and that account might have the same email domain associated with it as other Salesforce accounts. In these examples, mapping the SF email domain to the Aha! org email domain doesn't work as it pulls in all portal users for the larger organization, rather than those directly associated with the account. In these instances, I'd like to tie the portal user directly to their Salesforce account by syncing over the account ID.