How to add Paypal receipt # to completed form?

Adobe had this feature and I miss it.............

You can get the Transaction ID in the payment information. Here's how: 

http://www.jotform.com/help/231-How-to-Strip-Payment-Labels-and-Separate-Payment-Info-on-Email-Alerts 

If this is your form: http://www.jotformpro.com/form/51395350248961 and if "Desired Description" is the Paypal Integration. You can get the transaction ID using the following tag:

{desiredPrescription:transactionid}

Let us know if you need further assistance.

Thank you!