Can we match records on Salesforce record id?

 I'm attaching Salesforce account ids in form URL parameters. I want that accounts to be updated in salesforce with the information filled on jotform. However, I cannot see Salesforce Account Id when mapping fields.

JotForm already handles duplicated records for SalesForce, if the information already entered matches a record in SalesForce then the info will be updated; however, at the moment it is not possible to update records using the SalesForce account ID. 

If you want we could forward this to our second level as a feature request, though we cannot provide an ETA or ensure this will be implemented, we would let you know as soon as we receive updates regarding the feature. 

Let us know.