Wigan Athletic have been planning for their Championship return for three months, says chairman David Sharpe.
Burton are on the brink of promotion to the Championship after beating Gillingham, whose play-off hopes are damaged.
Barnsley caretaker head coach Paul Heckingbottom was left with mixed emotions following his side's 2-2 draw with Colchester.
Doncaster are all but down after relegated Crewe win for the first time in 16 matches after a delayed start at Gresty Road.
Paddy Madden's winning goal against Port Vale keeps alive Scunthorpe's hopes of reaching the League One play-offs.
Swindon hold on for a point with nine players as Louis Thompson and Brandon Ormonde-Ottewill are sent off at Rochdale.
Chesterfield confirm their place in League One next season with an emphatic victory over Bury at the Proact Stadium.
Neil Harris says Millwall will take a fearless approach into the Sky Bet League One play-offs after sealing their place with a 3-0 win over Oldham.