Who is responsible for customs compliance? or When everyone is responsible - no one is!

Reader‘s question: We are a medium-sized EU manufacturing company. We import and export goods, and customs clearance is handled by customs agents. We are going to set up our own customs warehouse, apply for the AEO status and obtain authorisations for customs simplifications. We have also faced restrictions in regard to the sanctions imposed on Russia and Belarus. The question is, who in the company should be responsible for fulfilling the customs requirements and complying with them so that customs-related processes run smoothly?