OrderComment max size?

The mql documentation doesnt state how long the order comment can be - does anyone have this info ?

thx

peculiar there is no info on this .. altho it doesnt seem to be too big and i really would like to store some details in there for later use .. anyone have any ideas ?

Don't know the acutal size, but storing data there that is important is not very wise as MT if need be, over writes that field with their imformation, any thing you put there is lost.

Keit

you are limited to 27 characters.. cowboy is correct in that the broker will also use this field for notes and erase yours.. they will normally note sl/tp and margin calls in this area..

yeh cheers - i only need to read it once - i have 2 mt4s talking to each other and i just wanted to pass some stuff across to the receiver once so that it could be displayed on the receiving chart

That will work as the only time MT writes to that field is when an order is closed(S/L, T/F), parital close, closeby. and it writes there on deposits and withdrawals.

Interesting way to pass info.

Keit

It's funny no one has an answer to this. I had someone create a script to help us test this and the limit seems to be 31 characters max, including spaces. If there are more than 31 characters, the mt4 server seems to automatically reject the entire comment. This was tested with mt4 b765 and b745 using pending orders.

We started to notice that our comments were not being stored on the EA orders and could not figure out why.

It is possible that your broker can replace comments with their own or choose not to store comments, but no sensible broker does this except in specific circumstances. Like if you cancel an order that never filled or if the good-til-expiration date was reached, then they might replace the comment with 'cancelled' or 'expired'. Older bridges would sometimes put broker codes that helped identify the order through the bridge, but those bridges have been upgraded. The comment field allows traders to store info and it should remain untouched, except for a speccific reason.