By using asana api, i can see assignee and followers have same id (as they are same user) but does it really differs if i consider assigneeId and followerID. Can i club assignee, followers and users/groups into one? Please suggest..
Yes, all assignees and followers are User objects, so the same ID represents the same User in all cases. Additionally, it's worth noting that every ID for objects in Asana is unique. That means that if there's a User with ID 12345, then the only object in Asana with the ID 12345 is that user. So if you have an ID, regardless of context you can be sure it is the exact same object if it has the same ID.