Dates problem in MRP Run

Question

Hello
i m running mrp using zpp_md50 is the zprogramme for running the mrp for all the line items in one sales order,  after running the MRP, whatever the pur. req. generated we will convert it to PO, but client need one release statergy here so that  they can take the assurance from the suppling plant that whatever the date mrp run showing is that plant is really able to supply the goods on that date or not.
1) if suppling plant is not able to send the goods on the requested date in that case receving plant should be able do the amendment (change) in dates in their panning so that they can give the new delivery date to the customer?how to achive this?
2) They also want when we run the MRP, system has to consider the unrestricted stock present for the sales order line item,but without giving the sales order ref. using 412e to sales order.cause their r huge no of line item in sales order.
3) my client is not able to achive the customer date so it is very imp to do the amendment in mrp dates cause the dependacy is on the supplying plant & the suppling plant can produse only taking  material grades of the same item at a time & it is not possible for suppling plant to produce as per the delivery date of the order.so  the date in master ie. in house production date maintain is not really going to be follow, as the plant is critical, plz suggest some solutions for this also?
Regards
Nishj.

Answer 1

Nishj,
Wow.  Substantial requirements.  Let me see how many of these I can help you with.
i m running mrp using zpp_md50
Please understand that that program is custom to your system.   It will be hard for us to comment on it's workings.
they can take the assurance from the suppling plant
It seems that you are selling the product from one plant but manufacturing in another
if suppling plant is not able to send the goods on the requested date in that case receving plant should be able do the amendment (change) in dates in their panning so that they can give the new delivery date to the customer?
This is standard in SAP.  Basically, the suppying plant will create a supply element (production order, process order, perhaps in conjunction with a Stock Transport order) to move the parts to the selling plant.  Once this element is in place, someone from Sales or another appropriate functional group will re-ATP the sales order.  The sales order will then re-confirm against the new, more accurate dates.
They also want when we run the MRP, system has to consider the unrestricted stock present for the sales order line item,but without giving the sales order ref.
This can be achieved easily, by not using a MTO strategy.  If you use strategy 40, Sales orders ATP, and all MRP calculations, will make use of all unrestricted stock.  If there then is NO sales order stock, then this means that ALL stock is included.  Just avoid any MTO strategies throughout your BOM.
There is no standard SAP functionality that will include Sales order stock and unrestricted stock simultaneously for the same part for the same requirement.
my client is not able to achive the customer date so it is very imp to do the amendment in mrp dates....
I am not sure what you are asking for here.  You have stated the solution:  The supplying plant does their research, and they then create a supply element with the realistic dates.  The Sales order ATP check will then re-confirm to those dates.  MRP will also run using those modified dates.
Rgds,
DB49