262Thus, the obligation on the administrative authority to complete a number of procedural formalities and steps before it is able to adopt a final decision in the field of competition, and the possibility that those procedural formalities and steps might give rise to legal action cannot be used by an undertaking to argue at the end of the process that a reasonable period was exceeded (see, to that effect, Opinion of Advocate General Wahl in Feralpi and Others v Commission, C‑85/15 P, C‑86/15 P and C‑87/15 P, C‑88/15 P and C‑89/15 P, EU:C:2016:940, point 70).