ATP check for planned Order in APO

[Former Member]

Dear friend,

As I am new in APO and it might be basic question for the expert. But it is very special for me to learn and get knowledge in APO. I have tried to study on Internet, read sap training book but something need to your help.

From your support, I can build the bridge to connect APO and ECC successful. I also created some integration model to transfer data between APO and ECC. I can check the stock, view master data and run heuristic in Product view. But in Product view transaction code (RRP3), when I do ATP check, it always said that component is missing althout the stock can cover these planned order. You can see the picture below

This is the stock of 102-130

Thank you

Regards,

Vu Pham

[sap_pp13 · Accepted solution]

Vu,

  What is the stock situation of components other than 102-130? Are they available or not (with zero qty)?

    Check the correlation calculation mode setting as seen in Customizing for Production Planning and Detailed Scheduling under Maintain Global Parameters and Defaults-->Execute tab.

If a correlation with adjustment is made, the confirmed quantities of the components are adjusted based on the components with the least confirmation. In other words system follows what is called as 'partial confirmation logic' based on availability of the component with lowest available quantity/stock.

This setting is the default hopefully and so in your case if any one or other cpts (apart from 102-130) have zero stock, then system confirms zero for all.

You can x-check by having 1 unit for all cpts other than 102-130 and see if the system confirms 1 for 102-130 also.

In the availability check result screen look for the missing parts indicator field also. For 102-130 it should not be checked on and for other components actually missing or not in stock at all it should be set.

Please check and confirm.

[Former Member · Accepted solution]

Hi Kumar,

I have just check global parameter, currently we are using correlation with adjusment and I understand with this function. I have checked all material in BOM and there are no any material is shortage. BOM include 8 material but ATP just show only 5 material is missing as picture below

BOM

Missing components

Material is missing 102-130

Material is not shortage 102-500

The problem might come from material master, isn't it?

Regards,

Vu Pham

[Former Member · Accepted solution]

Hi,

I have just found the reason why ATP always display missing for some of component. That is I have maintained checking mode in product master. When I empty this field as suggest from SAP help (F1) for this field, ATP checking run smoothly then.

So, thanks all of you for your support and this thread should be closed here

Regards,

Vu Pham