Check of material availability

For purchased material, the CDT CDT is short for check delivery times and it is a function on order rows which calculates when the order row in question can be delivered, taking lead times and throughput times into consideration. CDT also checks if existing orders and suggestions can cover material shortages, if any, and affects when the order row can be delivered. function checks if there will be a shortage within the lead time. Shortage is checked against definite shortage, not taking safety stock into consideration.

The CDT finds out the earliest possible delivery date for the product without there being a problem with included material. If a shortage does not occur during the lead time, it means the material is not critical for the delivery time. If there is no shortage because there is already at least one purchase order covering the requirement in time, then you will in the result window see the delivery date for the order, regardless if these purchase orders are confirmed by suppliers or not.

For included/incorporated stock driven manufactured parts, the same set of rules will apply as for purchased parts. That is, there is a lead time which lets you know how long it will take to replace the part. But if the CDT setting Check included stock driven part is activated, in cases where there is a balance shortage of the part, an analysis is made of its included materials and operations to see when these can be finished. If there is an existing order (even if it is beyond the lead time) it will always be waited for, if it results in the CDT does not have to make a new order.

The analysis if the material availability will result in one or several materials being critical regarding the delivery time if the difference between when the material is required and when you expect to have it available is greater than the difference on the operations (the analysis of capacity availability).

If the material is critical for the delivery time, the CDT can suggest that you change to an alternative supplier if this supplier has a shorter lead time. If an alternative supplier has the same lead time as the regular supplier, the CDT will instead suggest the most inexpensive supplier.

Parts which are not stock updated or parts with the lot sizing rule No requirement calculation, are not included in the analysis of material availability.

In distinction to purchased material, it is not always possible to trust the part's lead time in the part register for stock driven manufactured parts. The CDT function checks if there are any shortages within the lead time or if all shortages are so far ahead in time that it is OK to take material from an already registered order, provided that a refill can be made of new parts before the next requirement.

A requirement of a stock driven manufactured part can be supplied by an already existing manufacturing order. If you in the Net requirement calculation You use the net requirement calculation to perform requirements planning based on the customer order backlog, as well as any existing sales forecasts. have activated calculation of New finish, there is a date saved on each manufacturing order which shows when the order looks to be finished, taking the remaining hours and available capacity as well as material requirement versus arrivals of purchased parts into consideration. With the system setting called Existing manufacturing order you can choose to use the calculated New finish date or the existing order's finish date as the planned date when the part will be available.

When a stock driven manufactured part is a main part, or is selected to be lead time analyzed (as included stock driven part) the CDT will not take the part data's throughput time into consideration. A current throughput time will instead be calculated based on the current capacity availability and material availability. For example, if the pre-calculation says three days but that we at the moment have a high loading or a low material availability, then it can result in throughput time of five days.

The throughput time is calculated via CDT of the greatest value of the order quantity and the requirement quantity, with today's date as initial date. The calculation is the same as the calculation you can make without an order, using only the part's order quantity as a basis (using the button Run CDT in the Part register procedure).

If you select not to do a lead time analysis of included stock driven parts, then the throughput time including material procurement will be used as lead time. However, the CDT function always does a lead time analysis of the part you did the analysis of to see if new manufacturing is needed.

The date the analysis in CDT is based on for included stock driven parts, is the requirement date based on the desired delivery date/finish date for the part one level up in the structure.

If coordinated processing is applied, all the parts in the coordinated processing are included in the analysis. All incorporated/included material and loading are also included in the analysis, even if it is only one of the parts that you are selling on a customer order. The delivery date/finish date which is the latest in the analysis of the parts, will be the delivery date which applies for the part in the customer order.