Hi ,
I consider the following system setup for a Mill Products planning implementation .
1) In SNP one performs SOP planning with common goals to adjust sales plan, establish equipment maintenance plan, transportation plan, etc. The first month of the SNP plan is supposed to be in daily buckets. Using the SNP optimizer is a good option since the business goal is to use equipment more efficiently, let's say to minimize setup costs, and there are warehouse limitations for semifinished products as well.
2) In PP/DS we are going to use CDP and block planning since it is the best practice.
3) SNP planned orders can be used as a basis for PP/DS blocks on the resource, upon the condition that the configuration of SNP product - kmat variant and block requirements match.
In SNP i see that the SNP PDS has a duration of 1 day (that's fine), but the sequence dependent lot-size planning requires a bucket of at least 1 week long (1 month in my case) since the SNP orders are sequence-optimized only inside of one bucket. The result of such an optimization are additional counters assigned to SNP orders according to their sequence minimizing setup costs. However, orders are not scheduled according to the sequence.
So far it looks like such a combination is not useful as
- Orders in monthly buckets are not scheduled on days and cannot serve as a basis for block dates proposal for PP/DS block planning.
- If a product production volume is less than 1 day, SNP cannot create any more detailed block in principle since the minimal time bucket is daily bucket.
I searched over forums on these or similar topics, however no definitive answer so far for the question in the subj.
Could anyone bring more light on this ? Maybe I am missing something in the setup or sequence dependent lot size planning was designed for other purposes/industries?
Best regards
Vladimir