does anybody know what error number the mt4-server returns if an order already has been closed and an EA tries to close 'the ticket' as well?
MT5 does have:
The position with the given
POSITION_IDENTIFIER has already been closed
Malfunctional trade operation
Well I wasn't sure whether I'll get invalid ticket or e.g. off quotes or something else..
Anyway I wrote a script and got 4108:
which is mentioned in the reference among all the other errors :(