Yes. It works, though I had to comment out a string which contained national characters like this, otherwise the was left in tmp folder and not attached.
fname = "tmp/" /*& USetStr(1818) & " " */ & IPr.SerNr & ".pdf";
Hi, Paul.
Sounds like you're talking about REST API. And that your are overwriting data with older values if B managed to read record before A finished to update it. Classic conflict resolution ...