Can credit cards be used for ACH?

Could you elaborate on the feasibility of utilizing credit cards for Automated Clearing House (ACH) transactions? I've heard that ACH is primarily used for direct deposits and payments between banks, but does the system also accommodate credit card usage? If so, how does the process work? What are the potential benefits and drawbacks of using a credit card for ACH transactions? Additionally, are there any specific requirements or restrictions that apply when attempting to integrate credit cards with ACH? Clarifying these points would greatly assist in understanding the intersection between credit cards and ACH.