Hi amine,
Oops, sure, my mistake. It couldn't work using Label.
Fixed to use the "comment", but it still doesn't work for me

As manual trades don't have any "comment", the strategy says "null" when processing such a trade by an IF block and then the IF block does't proceed in comparing the "null" with "mycomment". It never gets through even the result is "=" or "!=".
Attached is the strategy.
Any idea how to get over this?
Many thanks for your help.