MRP available Qty and reservation not working

[juliocesarquion]

Hi PP gurus

lets say I have material A that use component B in qty 1 to be manufactured, the problem is the following

1) If I have 3 orders for Material A with dates say

01-Mar-2011 Order 1

15-Mar-2011 Order 2

28-Mar-2011 Order 3

And I have in available stock only 1 piece of material B I can therefore only release order 1, If I try to release order 2 then I get an error because the material is not available (this is what I want and is working well)

The problem comes when I go and change the date of order 2 to 15-Feb-2011 (to any previous date from order 1)now I'm able to release, and same happens if I change the date of order 3 to 10-Feb-2011 then I can release order 3 too and this is not correct, I need to release orders only If I have the components available and no hard reservations for it.

Note: when I'm able to release also if I check the material availability it says all materials in order XXX are available

Note2: I have setting for only releasing if no missing components

Please advise what settings are missing to achieve this

Regards

[Former Member · Accepted solution]

Julio:

the availability check carried out during order release is NOT THE SAME than reservations.

It checks the elements that are included according to the availability check of the components and the rule (normally , PP). When making the Av. check, SAP marks this quantity as "Commited" - linked to the order- and it should be no longer available for other requirements.

Question: do you save the released order order Number 1? I assume YES. What happens if you run the av. check for the order 1 (after having changed dates in orders 2 and 3)? Is there any message or change in status ??

Regards

[juliocesarquion · Accepted solution]

Hi Dario,

Yes, I saved after release, so now all three orders have status released, but now if I sort the orders by date I have at the top order 3, 2, 1 and if I run material availability system says all materials are available, in all three orders.

Any ideas?

[Former Member · Accepted solution]

Julio: which are the settings in OPJK? Both for creation and release processes...

[juliocesarquion · Accepted solution]

For creation:

No check: marked

Checking material availability: Not marked

Checking rule : PP

Component check type: ATP

PRT and capacity no check is marked

For release:

No check : Not marked

Status check: Not marked

Checking material availability: Not marked

Cheking rule : PP

Component check type: ATP

Release material : 3 No release if parts are missing

PRT and capacity no check is marked

All this is for PI01 in using process orders

Thanks

[juliocesarquion · Accepted solution]

Any ideas?

Please I would really appreciate any help on this

[Former Member · Accepted solution]

A few pointers which should help correct the situation:

First reset all commitments done to the 3 SFO's. If its a test system, then do a re-read of master data if no postings are done, so you can revert back to your initial status.

Now run Av. check for all three orders in COMAC. Depending on the settings done in OPJJ for the checking rule, system will do the commitments. Once the commitments are done, check in the 3 orders, whether the committed qty field is populated. If you're only considering stock in the checking rule, then system would commit to the first order.

Now change date of the 2nd or 3rd order to an earlier date. Now if you run an av. check within that specific order, system will show it as shortage (provided you do not make any changes to checking rule in between).

But if you re-run Av. check in COMAC with reset commitments flagged, then system will reset previous commitments n commit to the rescheduled order.

In your check rule, ensure that you're considering reservations in inward/outward mvts. & also see if any supply elements such as PO, PR etc is considered. If they are considered, then it might well be that system is committing all 3 orders as there are some supply elements.

If the above still does not resolve the issue, then upload screenshots of MD04, MMBE, CO03 (component view), OPJJ to a portal n paste link here.

[Former Member · Accepted solution]

Dear Julio,

Please make the following settings in OPJJ:

Here for the combination of your availability check (e.g. 01, 02) and availability rule (e.g.01,PP) in the 'In/Outward movements' tab don't select 'incl. Purchase orders, incl.purchase requisition' if u want material availability check for semi finished material.

So when u'll create production order for semi finished material and click on availability check it will show u Missing parts warning.

basically the idea is of considering the stock/receipts for particular material in availability check.

So in ur case apply these settings to material A and create prod order(manually or through MD04). Check n revert back

Also Please make the following settings in OPJK:

For release:

No check : Not marked

Status check: marked

Checking material availability when saving order: marked

Cheking rule : PP

Component check type: ATP

Release material : 3 No release if parts are missing

Please check n revert back,

thanks,

Sudhakar

Edited by: Sudhakar23 on Feb 25, 2011 1:27 PM