If you choose to recommend dynamic channel assignment for the APs in your WLAN design,...

Dynamic Channel Assignment (DCA) algorithms optimize the RF environment by automatically selecting channel assignments based on factors like interference, noise, and utilization. However, DCA requires tuning of algorithm parameters to align with the specific design and site requirements.

From CWDP-305:

“Dynamic channel assignment and transmit power control must be configured according to the design goals and validated after deployment. Default settings may not produce optimal results in all environments.”

Simply relying on default settings without adjustment can lead to poor RF behavior.

— Reference: CWDP-305 Official Study and Reference Guide, Chapter on Wireless Design Process