Blackpool boss Paul Ince apologised after a bottle he threw during a 2-1 Championship victory at Bournemouth inadvertently hit a female supporter.
The 45-year-old was sent to the stands for his reaction to his table-topping side missing a late chance.
Assistant manager Alex Rae said Ince had "apologised immediately".
"We thought [Ince being sent from the dug-out] was harsh because it bounced through a barrier, but even still we're obviously not happy with it," said Rae.
"The fourth official made the decision to send him to the stand so we just move on from it.
"To be fair, the manager went over and apologised to the lady immediately as it actually hit her on the foot, I think, and she's accepted his apology."
Ricardo Fuller and Neil Bishop scored their first goals for the club, sandwiching a Lewis Grabban equaliser and Blackpool remain top of the Championship..
The former England midfielder refused to carry out post-match interviews.
Further action by the authorities will depend on he referees report n the coming days.