•You can group different operations from different published APIs. You can view the operation-level polices applied to each operation.
•You can add only one operation with the same operation type and operation endpoint to one API group.
•After you delete an API operation from an API group, save the API group to successfully remove the operation from the API group. Otherwise, the API operation is not removed from the API group.
•After you create and save an API group, if any associated authentication policy changes any operation in that API group, you must add the operations again for the policies to take effect. Authentication policies doesn't refresh automatically for any operation in an API group.