Storage capacity as hard constraint in SNP optimiser
Hi,
We are working with 1 production plant and 5 DCs.We are using SNP optimisation as storage capacity is a constraint to us in the business.SNP optimiser is not respecting the storage capacity as hard constraint. In the results log,we are getting a clear warning message that Storage capacity is not available but this a warning message and creating planned orders. As per the help documentation,it is written that it is a soft consraint.Expectation is that optimiser should check the capacity and stop creating the order for the balance quantity. i maintaines high storage capacity costs in the storage resource like 999999...but still we are getting excess orders with the warning messages.
Could anybody explain whether any settings are to be done or it is only a soft constraint?? i tried with both linear and discrete...but getting same results.
Thanks in Advance
Aktar
Hi Aktar,
In addition to that what Suresh has mentioned already, I would like to say, that please check the storage cost again, and compare it with other cost. The cost you maintain as storage cost, it is per product. And in your storage resource, 1 unit of resource consumption may contain 1000 or 2000.. or more no. of products (please check you have maintained 'Storage Cons.per BUn' at GR/GI tab of product master. So, per unit resource consumption incure mich bigger amount of cost. So, optimizer will not plan for any product if you not maintain much higher (as compre to strg cost) non delivery penalty cost. Because the main aim of the optimizer is to minimize the cost only.
So, putting high storage cost does not make sense when you have to put higher non delivery penalty cost.
Thanks,
Satyajit
Edited by: Satyajit Patra on Jun 26,
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let me rephrase what I said above:
When I say:"the capacity consumption for storage capacity is not based on projected stock but on the orders": I mean:
The capacitiy consumption calculation is not based on the proejcted stock key figure.Instead the storage quantity is calculated based on initial stock, receipt AND demand.
This should give the same result, but what I meant is: I don't think that the changes you have done for the projected stock have any impact on the storage capacity consumption.
In you case it looks like the result is based only on receipt as you mentioned, but to be honest even that look wrong (something arriving on day x should consume the storage untill it is removed and send somewhere else, and not only on the date of arrival)
Note the standard data view 9ASNP94/SNP94(2) - the capacity view- does NOT contain the projected stock key figure.
What you want to see is correct: in standard it should work! (except that it is not based on the projected stock key figure itself, but it is recaculated...)
Did you check if the standard view 9ASNP94/SNP94(2) was showing the right result?
I asked you:" How your system behave with other order types (e.g ditribution demand, production...) "
I meant: when you have a distribution demand, is your capacity consumption reduced?
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