If your business depends on the regular monthly payments from your customers, any missed payment can have a significant dent on your profitability.  The problem is it is very costly and tedious to continuously call your customers to remind them about payments.  Worse, some customers will tell you that the check is in the mail already but actually it is not.  To avoid these hassles, you need to implement the ACH payment processing system.  And to protect your business interest, you can use the ATM Verify to determine if the e-check is funded or not.