"has posed challenges" is correct and usable in written English.
You can use this phrase when describing a difficult situation or obstacle someone or something has encountered. For example: "The global pandemic has posed challenges for many business owners."
Developing protein therapeutics has posed challenges due to short circulating times and toxicities.
Understanding regional air temperature (Ta) variability and urban heat island (UHI) magnitude has posed challenges given the minimal observational stations in urban areas.
The increase in English as Second Language nursing students in the classroom and clinical setting has posed challenges for nurse faculty.
But its waterfront location has posed challenges, with aging structures subject to the battering of wind and water, and the trust has struggled all along to fulfill one of its key mandates — the need to be self-sustaining.
The rapid growth of traffic demands has posed challenges and difficulties on both the radio access networks (RANs) and the backhaul links.
This uncertainty has posed challenges for developing regulatory policies for the control of DEE.
This rapid urbanization, population growth, and concretization of the wadi system have posed challenges to the efficient use of the water harnessed from the wadi itself.
Such advanced elements as underfloor air distribution (UFAD), passive swirl diffusers, and demand controlled ventilation have posed challenges to system design and operation.
Just as early 20th century visualization technologies posed challenges to the clinician's diagnostic autonomy, early 21st century digital communications technologies have posed challenges to the very concept that clinicians are the sole gatekeepers for medical information and expertise.
She hasn't been stumped yet, although the fifteen-passenger vans of some Orthodox families — filled with, say, seven to ten kids of varying ages and sizes — have posed challenges.
