General ACCASuspect that my manager isn't qualified...what to do?

It is an interesting question you pose (detail that could identify your manager on this public forum deleted). As you say, you are now sorted - so you have to ask for what good reason would you tell someone. As another manager stepped in to deal with it it seems unlikely that your employer is not already aware or have suspicion. And the manager in question is clearly aware that there was an issue, so should want to avoid being put in that situation again. If you thought it necessary to tell someone to prevent it happening again it would be your employer. There is nothing to be achieved by raising with ACCA - a professional body's ultimate sanction is to take someone's membership from them - disciplinary action cannot be brought against someone who is not a member.

"versus the fact I’ve worked very hard to get qualified, as have the other members on the team, why should this person gain the benefits of qualification having not achieved it." It's interesting for sure. However depending on where you are based, an accountant may or may not be a protected profession. For example, there is no legal or otherwise requirement to be part of an accounting body in order to to practice accounting or describe oneself as "an accountant" in numerous EU states (UK (well EU till recenlty!), Ireland, many others I believe). So unless the person in question lied to get their role, or puts letters to signify membership of a body etc after their name without actual membership, they may not be doing anything wrong, and as such any flagging may prove at most merely embarrassing for the person, as opposed to inflicting any greater damage. And from the sounds of it, your employer may already know.

have you checked on the online records of acca/ members ? in any way, to be a manager in audit firm is not required to be qualified. you can even be a partner under conditions and not be qualified so, i really dont see any reason to bother unless you are salty about him.

It is also possible that your manager says he is qualified because he completed his exams and did not become a member of a professional body or his membership lapsed. If I were in your position, I would look at my intention of why I should be bothered about it. And If you are proven right and your manager loses his job, does that make you happy? Or if you are wrong and your manager learned you raised this concern, imagine what that might do in your relationship.

It is possible that the manager is qualified by experience. He/she may not qualified by papers but he/she has vast experience in it, which is also permittable to do the manager job, or employed as a manager. So.… why is this wrong? He/she is not signing the audit report or accountants report, he/she just doing the job of preparing accounts and dealing queries. There's no problem with it except he/she can't sign off our PER XD