Full Guide
Quick Links

Bet status cell

If this spreadsheet is active, when our criteria are met, a bet will be fired into the market. This will happen without our intervention and fully automatically.
To signify when the betting instruction is being processed, the ‘Status’ cell will change.
For the betting instruction to be scanned and processed in the first place, the 'Status' cell must be blank, then as the bet is being sent to betfair it'll show 'PLACING' and then change to ‘PLACED’ once a bet reference has been returned. 
For more information about the possible values of the status cell see here.