Blues face The Addicks at Portman Road on Monday
Town's U23 fixture against Charlton Athletic will now take place at Portman Road on Monday, 23 September [kick-off 7pm].
The Professional Development League Two match was set to take place at the Club's training ground, Playford Road, with a lunchtime kick-off, but will now be held at the main stadium.
Admission is free for season ticket holders and members with prices below.
The game is set to be broadcast live on the Club's Facebook page.