This condition allows you to restrict a rule triggering dependant on the status of the market. When using this condition you can specify if the market should be 'Open', 'Suspended' or 'Closed' before the rule is allowed to trigger.
An example of when this condition would be handy is if you had a rule to retrieve a selections 'Win status' or 'Profit/Loss' from a market, but as these are only published by Betfair once they settle and close a market, you would only want the rule to trigger when 'The market is closed'.
NB; If using the 'Suspended' or 'Closed' condition remember to ensure you have the 'Allow Trigger when Market is Suspended' box ticked in the Rule Trigger Times area on the General tab of this rule.