Ability to Audit (or realign) HubSpot Users to Salesforce User IDs


We ran into a case that we could not explain why an internal email notification in a workflow was failing on the contact owner ID (assigned and driven from Salesforce.com). It turned out that the Salesforce user ID (owner) passing intothe HubSpot contact owner property was not mapping (or matching) to the HubSpot user even though the email addresses are exactly the same.  So need a way to verify a HubSpot users mapping to a Salesforce user ID.

I would suggest this would fit perfectly in with at least 2 other ideas I have found about email exporting, or otherwise accessing (and updating) an expanded set of user properties.