Assalamu alaykum Shaykh. I work in marketing for a non-Muslim company in the West. I've been tasked with finding Halloween events to ship bags with our company logo to, for advertising. I won't attend or participate. Is this permissible for me as an employee? Jazakum Allahu khayran.

Ustadh AbdulAziz al-Haqqan

This is not allowed, because it is helping to promote their festival, and the scholars said a Muslim may not help them in their festivals with anything.