PMC department is the next working procedure department of the purchasing department and the last working procedure department of the purchasing department. The reason why it is the next process department is that the material demand of PMC department can only be arranged by the PC of PMC department after the purchasing department receives the materials. In the process of purchasing materials, PMC department should constantly urge the buyer to arrive, asking the buyer to promise when the goods will arrive, and the quantity of materials must be the quantity required by PMC department, neither more nor less, and the received material specifications are also the specifications required by PMC department. The arrival date must also be the date when the PMC department issues the purchase requisition, and it can't be too early or too late, which will affect the suspension of production and waiting for materials. So PMC is the next process department. The PMC department is also the last working procedure of the purchasing department, because the scheduling of PC personnel in the PMC department is based on the master production plan, and after the material requirements in the master production plan are decomposed by MC, the purchasing department can purchase the materials only after the PMC department submits the picking list to the purchasing department, so the PMC department is also the last working procedure of the purchasing department.
Second: how to coordinate the work?
Answer: In order to achieve the best coordination between PMC department and purchasing department, these two departments must be managed by a large department. For example, both departments are material center management and are both deputy general managers. Moreover, the company has to be influenced by the PMC department to impose a fine on poor supply and marketing. The PMC department decides what the purchasing department purchases, how much to purchase and the delivery date. For the purchasing department, it only needs to obey the selection of purchasing suppliers and the determination of purchasing price.
Third: Which application of ERP?
Answer: The application of ERP between these two departments depends on the "material demand plan" of PMC department in ERP. By running the material demand plan, it is converted into a purchase plan, and then the purchase department converts the purchase plan into a purchase order, thus realizing the work connection between PMC department and the purchasing department in EPR.
Fourthly, how does PMC department make purchasing plan according to production plan?
A: Before making purchasing plans according to production plans, PMC departments should first make clear several basic tasks. In addition to the above answers, they should also make the following preparations.
No1:the purchasing department gives the lead time of each material, No.2: the purchasing department gives the economic lot size of each material, No.3: the purchasing department gives the minimum delivery quantity of each material; Fourthly, the purchasing department gives the packaging quantity of each material. Then, according to these indicators, PMC department uses the method of linear regression equation to control the conversion between purchasing time and purchasing quantity, so as to achieve the goal of not stopping work for materials and not overstocking materials.