I think the more reasonable approach is that if a requisition has six material, two of them because of negligence, not specified suppliers, in requisitions into purchase orders in the process, the system will have been supplied generate purchase orders supplier of materials, than to remind the error message, saying that because it did not specify which of the two materials suppliers can not generate purchase orders, requisitions to maintain in the Department, after maintenance, without the need to delete purchase orders under the premise of the these two materials can generate purchase orders. Such a design, it is convenient and reasonable. Most systems, such as Digital China's ERP system is so easy to fly to deal with.
Purchase order maintenance. Purchase Order Maintenance is mainly to do some routine maintenance. Need to be reminded that some changes to work, it is best handled through a single purchase order changes, and so can be modified to preserve the historical record, to facilitate tracking and follow-up treatment.
Error-prone places:-
According to the needs of the relevant date of calculation of lead time. Under MRP Program generated requisitions will be under the relevant model, automatically calculate the date a material requirements. This date is accurate, is directly related to the efficiency of job requisitions. Imagine a slightly more complex raw materials, enterprises, there are a hundred kinds of materials, production orders, materials, cast materials, according to the time difference, the needs of the various materials, the date is different, if it needs to set up a first date, is also not necessary, material on to the enterprise, it will undoubtedly increase their inventory costs; if calculated according to actual demand, then adjust the workload of the relatively large, to a month to change the timing of demand for material. Therefore, the best are, ERP can be according to company data, such as production planning, product working hours and other data to calculate a more accurate material requirement dates, so users no longer need to manually adjust the relevant delivery of. However, the early period of the model is a more complex model, business model calculation in the use of this material needs of the time, it is important that the relevant period set in advance, its settings are reasonable and directly related to the material requirements planning of the time is accurate. Therefore, in the implementation of the procurement process, I always recommend that users, at the beginning of time, not to use such models to project lead-time material requirements, or honestly manual adjustments; when the ERP system is running to a certain time, and then began to consider the use of lead-time model. So, more appropriate.
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