MRP resulting in multiple requisitions for same material

[Former Member]

Hi,

I´m having some difficulties with MRP for my client.

I have set up lot size as MB for monthly.

I am expecting one requisition for one material, however when it runs it creates three.

Can someone explain to me where that is controlled and with what criterias?

I am also after knowing how to group multiple requisitions for same material into one line on the PO.

When running the ME59N it creates one line per requisition, however im sure it should be possible to group into one line on the PO?

Really appreciate any help.

[Former Member · Accepted solution]

Hi,

This is issue was discussed here: [Grouping of item`s in One PR while MRP Run|;

Hope this helps!

Reetesh

[Former Member · Accepted solution]

Can you explain where I can see the dates that affect this?

The requisitions it creates have the same dates..

Due to having MB I expect that MRP groups requirements into one REQ for that material, however it creates 3.

[JeevanSagar · Accepted solution]

Do you have lot sizing?

Why type of MRP is it? Consumption based (like re-order etc) or regular PD?

[Former Member · Accepted solution]

Regular PD.

Or we have copied it into ZD but its the same.

[JeevanSagar · Accepted solution]

Since you're saying they all have same delivery dates, normally it could happen if you maintain min and max lot sizes maintained in material master.

[Former Member · Accepted solution]

Yes, I have min maintained but not max.

Is that why?

[Former Member · Accepted solution]

or actually, scrap that. I have 0 on both.

[Former Member · Accepted solution]

Im wondering if my requirement dates are different.. im running forecasting also..

where can I see that? How would you evaluate that your settings are right?

Here is what I have maintained:

MB as fixed lot size

0 as min and max lot size

ZD (PD) as mrp type

For that material, it should create one req, but it creates 3.

[JeevanSagar · Accepted solution]

Use transaction code MD04.

Make the following settings in MD04 for your convenience.

On the selection screen check "With filter" (no need to select any filter)

Click on the blue flag beside Material.

Environment >> Navigation Profile >> Assign >> Navigation Profile = SAPPPMRP00

Edited by: Jeevan Sagar on Dec 14, 2011 3:40 PM

[Former Member · Accepted solution]

Not sure how to do that?

I tried in MD04 but dont see enviroment...

[JeevanSagar · Accepted solution]

Environment is in the menu after you display the requirements data. Those settings are not required. I mentioned them so that you don't have to go to different transactions to see different data.

Like the above poster mentioned I would suggest you to run MRP using MD02 with settings like following.

Processing key: NETCH

Create Purchase req. : 1

Delivery Schedules : 3

Create MRP list : 1

Planning mode: 3

Scheduling: 1

[former_member184701]

dear friend,

those 3 reqs mean that your stock is not enough yet...

first of all, i would recommend to re-run MRP (you would use MD02 for this particular material)

after that open MD05 and check out the current requirements.

you will probably see the new situation.

please take into account that master data plays significant role as well

-do you have Safety stock (MRP 2 view)?

-any coverage profile is set?

-...

good luck!

[former_member221541]

Hi Jimmy,

For the first question (More than one Preqs as a result of MRP):

More than ane Preqs are possible as a result of MRP run becuase of different delivery dates, so based on your planning parameters you must have different requirement date for that material and so you are getting multiple Preqs.

For second question (Clubbing Multiple Preqs in a single PO):

You can use ME21N and select one of your Preq (using Document Overview option), this will create one line. Now to accomodate other Preqs in this single line, put all others Preqs in delivery schedule tab of the PO.

Thanks,

Yogesh