Bhagavatam is the most authoritative scripture

As  the    Vedas,  being  vast  in scope, have many  prescriptions for those  interested in fruitive action  and  impersonal realization, instructions  for the devotee is not easy to extract.   In order  to clearly  show the  real  meaning which  is revealed here  and  there  in the  Vedas,  the  sattvika puranas have  been given.  Among the sattvika puranas, the Srimad  Bhagavatam is the best, most explicitly explaining the  highest import of the  Vedas.  Thus  the  Bhagavatam and  the Pancaratra scriptures, which  confirm  the same  conclusions, are counted as authoritative knowledge.

Chaitanya Shikshamrita, Bhaktivinoda Thakura