Hi Tristan and Leslie,
I tried all of the solutions you suggested but nothing is fixed. The invoice is in the SOP30200 and 30300 table but not in any RM above.
Something is weird is that whenever I post individual sale invoice, my session hungs up. To avoid that incident, I have to save even one invoice in a batch and process the posting. When I posted this invoice, I posted individually and my session hang up.
Regards,
Nhi