Customers are more and more demanding regardingfirms’ services or products. In today’s highly competitivebusiness environment, they need to go beyond orderqualifiers such as price, delivery lead time and productquality, to develop order winners that are related tocustomer service. This can be achieved by developing andmonitoring the performance of the "Customer andCommercial Logistics (C2L)" processes. C2L includes allthe processes involved in managing customerrelationships and flow of orders. We focus on the OrderManagement activity, which probably constitutes themain component of C2L. The first part of this paper willdiscuss it and present the issue of its integration in theOrder Fulfilment Process (OFP). In order to enhance theaccuracy of order promising and the reliability of orderfulfilment, the advanced ATP (AATP) function hasincreasingly attracted the attention of the supply chainmanagement research community. The interactionbetween entities is crucial to the success of the OFP. Theaim of this paper is to present a methodology, based onexisting research, to manage bulk orders. This preliminaryresearch should lead to the development of a specificAATP based on a multi-criteria analysis.