The Hammers will meet Macclesfield in their fourth round Carabao Cup tie at London Stadium on Wednesday 26 September, with a 7.45pm kick-off.
The Hammers were paired with The Silkmen in the competition’s last-32, after beating AFC Wimbledon 3-1 last Tuesday.
The Irons will fancy their chance of seeing off the lowest-ranked team left in this season’s competition after the League Two side saw off Bradford City and Walsall in the earlier rounds.
West Ham have faced Macclesfield twice before in senior competition, beating them in a 2002 FA Cup tie and in the second round of the 2008/09 League Cup.