The photofission process, while paramount for various nuclear applications, presents a multifaceted and complicated phenomenon that demands exact investigation. Photofission, characterised by the excitation and subsequent fission of a nucleus induced by photon absorption, holds critical importance in fields such as nuclear energy production, nuclear medicine, and fundamental nuclear physics research. However, its complexity arises from the intricate interplay of various factors, including nuclear structure, excitation mechanisms, and reaction dynamics. By delving into the theoretical underpinnings of photofission, we endeavour to unravel the complexities inherent in the process and shed light on the underlying mechanisms governing ²³⁷Np photofission. In this study, it is shown that the effects of nuclear structure such as the nuclear level density (NLD) at saddle points and fission barrier parameters play pivotal roles in determining the probability and characteristics of photofission reactions. By employing advanced theoretical models and nuclear reaction codes, we delve into the intricate interplay between these key factors and the photofission cross section of ²³⁷Np. Theoretical calculations will be validated versus experimental data, facilitating a deeper understanding of the underlying mechanisms governing ²³⁷Np photofission dynamics.