Material ATP logic during Production Order creation/release.

[former_member267531]

Hello Team

I perform ATP check during production order creation and below is the result of missing part list.

But when I checked in MMBE there is a enough stock available for this component.

Does a reserved Qty plays a role over here ? As the reserved qty is more than the Unrestricted stock ?

Same production order second components also were there in Missing part list of ATP check.

Later I added more stock to the second component in unrestricted use than Reserved stock and the below component is no more in the Missing list of ATP check - Material.

How this get calculated wants to know.

Br, Kiran

[paulo_zaccaro]

Hello Kiran,

many factors can be change the results from ATP. If possible, share the SAP screen of configurations ATP (OVZ2 and OPJJ)

for help you now, you can use the tcode CO09 for understand the results. Just put the material, plant and check rule (check whats the check rule you are using for this case).

I will wait for SAP screens if you need more help.

Regards,

Paulo Zaccaro

[former_member267531]

Hello Paulo

Please find below screenshots.

CO09

OPJJ

Br, Kiran

[paulo_zaccaro]

Hello Kiran,

two doubt.

• Are you using check rule "BO" for PP order ? check in OPJK. If you are using other check rule, run CO09 again with the correct check rule.
• The requirement quantity for material ...8858 is 7 or less ?

Regards,

Paulo Zaccaro

[former_member267531]

Hello Paulo

Yes the checking rule is correct.

& the requirement qty of material XXXX8858 is 7.

And we added more stock than reserved stock please find below screenshot.

Br, Kiran

[paulo_zaccaro]

Hello Kiran,

let's see this in two parts.

8858: I dont see any problem with this. When you said "And we added more stock than reserved stock please find below screenshot." whats you need to know here? Because in my knowledge is very normal this, and the stock type "Reserved" includes different requirement types like AR (Automatic reservation/Order reservation). See these entries in MD04, or in table RESB.

So, my question here is. You see any problem when the unrestricted stocks have more than reserved stocks? Maybe this is not so clear so me.

8859: This is strange, because based in SAP screens that you sended, you have stock for this ATP.

Kiran my sugestion for help you, is that you can check this SAP Note 547118. Is a FAQ and will give you more details about ATP run. Please, check if helps you.

Regards

Paulo Zaccaro

[former_member267531]

Hello Paulo

I wants to know that the Available Qty = Unrestricted Stock – Reserved Stock

So during availability check error comes when the requirement Qty of production order > Available Qty, this is how the standard SAP behaves that’s my Question was.

Br, Kiran

[paulo_zaccaro]

Hello Kiran,

according your setup in OPJJ, not. If you want that Available quantity = Unrestricted stock - Reserved stock, you need to include the depen. reservations too, like below:

If your requirement, please try and tell me if this work.

Regards,

Paulo Zaccaro