public override int ModifyDomainCredentials(string originalGuid, ProcessAgent agent, string extra, 
            Coupon inCoupon, Coupon outCoupon)
        {
            int status = 0;
              UserSchedulingDB dbManager = new UserSchedulingDB();
            if (dbManager.AuthenticateAgentHeader(agentAuthHeader))
            {

            try
            {
                status = dbManager.ModifyDomainCredentials(originalGuid, agent, inCoupon, outCoupon, extra);
            }
            catch (Exception ex)
            {
                throw new Exception("USS: ", ex);
            }

            }
            return status;
        }