Created a app in which User order the item and a manager give approval to order in back-end. But I want that Specific item get approval by specific manager. Example: A sports item will get approval from sports manager. Please help me in this
You will need to have a configuration (maybe an association) that defines which item needs to be approved by which manager.
If you have this association/setting stored in your database, you can only show the items to the manager, he is supposed to approve. You can also check in your approval microflow if the current user is the one that is allowed to approve.