title: Get SOST database ID of sent emails
body: <p>I have an ABAP program that sends emails. A sent email is stored in SOOD table. After sending an email I would like to get some ID of the email to be able to check its status later (in SOST table). I have seen more functions/methods to send email (e.g. cl_bcs/send, SO_NEW_DOCUMENT_SEND_API1), but none of them returns any ID. Is there a reliable way to get it? </p>