[Yifei] batch demand plan-critical defects, and fatal defects

Source: Internet
Author: User

[Yifei] batch demand plan-critical defects, and fatal defects

The title is quite rare. Let's take a look at a case: (below is my Simulated Test Case)

Simulation conditions: Main Parts No.: 10101008010001 Product Name: ACM0801B-FL-GBH fixed prefix days 8 days change prefix days 1 day

Component No.: 30100008010001 Product Name: LCD fixed prefix days 10 days, MOQ: 3000

The inventory of the main component and component is 0.

BOM structure: ratio:


Received from customer A in December 3, 1000 C: PCS expected delivery date: October 1, 2014


Property Control Mr. Li ran the LRP requirement after receiving the Contract Review:


Send requisition requests:

Purchase order generation: 3101-141207001 demand date: (-9 days-1 day): 3000 PCS




Received by Customer in march 300: Order a d: Requirement: PCS expected delivery period: October 8, 2014


Mr. Li received the Contract Review Form to run LRP:


Purchase order generation: 3101-11-21 demand date (-9 days-1 day): 3000 PCS



A total of 6000 PCS have been purchased. The actual demand is 1000 + 300 = 1300 PCS.

From the perspective of material supply and demand balance, consider safety stock: you only need to purchase 3000 PCS, and purchase 3000 PCS more.

The company has not consumed any orders in the near future, resulting in sluggish performance!

Some students can select this option when generating a batch Requirement Plan.


OK, this will produce a greater risk: material shortage

I assume that the above situations are the same: safety stock and MOQ: 0;

C order generation requirements:

Requisition: 1000 PCS required for purchase date: (-1 day)

Run D order demand: select the supply after the demand date for calculation.

Estimated 300 PCS <1000 PCS

No purchase required.

Finished. Delivery failed due to shortage of materials in the corresponding ticket of D !! Deadline extension, customer claim!

Is that true?





The system still installs the MRP logic from the perspective of material demand balance.


Current practice: orders placed two months later in the delivery period do not run for the time being, because the procurement cycle is not accurate, the supplier is usually unable to meet the demand standards.

The Property Control also regularly runs the material requirement inspection table to prevent material shortage.


Let's assume another scenario simulation:

The material stock is 300. Customer A needs to order September 1 PCS in 200 and September 30 PCS in 500.

Step 1:

Increase material LCD inventory:



Step 2: Customer A in and respectively demand ACM0801B-FL-GBH 500 PCS and PCS.


Step 3: generate a batch plan and issue the procurement



I have doubts: Why is it different from what we imagined? Do you not consider inventory? Unlikely !!!

Looking back at the purchase plan, the 9.0 plan will be saved, which is better than the 8.0 plan. Observe carefully: I think Yifei has a stock consideration. He only considers it from the end of the delivery period.

In September 21, 505 of the demand was over 300 of the inventory, so 505 of the direct purchase was made. All previous requirements must be purchased = replenishment required.

The result I want is this;

Procurement quantity 0 Inventory 300 inventory balance 98

Procurement quantity 306 inventory 0 Inventory balance 0

505-million purchases


In this case, if MOQ is not taken into account, how many materials will be bought?



What are the basic configurations of batch plans?

Which brands of products are currently purchased? What are their attitudes towards these products? Are there any new purchase plans? Determine the market demand. A complete advertising plan should include at least the following content: 1
 
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