Problem with ATP Check in Material Master

[former_member986948]

Hello

I have been searching for a solution - but this issue make me speachless..

What i did?: I configured for different Materialtypes different required fields in the system (OMSR).

Now i got the issue that the entry in Availability Check in Sales: Gen/Plant and the Availability Check in MRP 3 disappears when i select an another tab! I mean i select an entry and go to an another tab till MRP 3 and what i see is that my entry is gone.

I customized fixed values in Customizing for the ATP Check for plant and Material type, but no chance the entry does not appears in the Material.

Does anybody has an idea to solve this problem?

Thank you very much!!

[former_member986948]

Hello

The Problem is solved. There was an blanc entry in a SM30 *ZMM* table.

Thank you!

[VeselinaPeykova]

There is rather scarce information on what was changed, which makes it difficult for community members to reproduce the problem in a different system.

What I would do in your case would be to start from the beginning, change one thing at a time and test the outcome after each change. It might be that you set to mandatory some fields which are set to hidden via other criterion. As you probably know, you have several field references that influence the availability of fields in addition to the one coming from the material type - like MM01 (transaction-specific), E and F (procurement type specific), SAP1, SAP2, SAPR (standard delivery), KB, M (or other industry-specific ones).

[Lakshmipathi]

The screen shot says, you have not maintained some field value which is set to mandatory. Also, when you say you customized some values for ATP check, you have neither explained in detail nor shared the related screen shot for better understanding.
In general, with the standard functionality, just because you change the field settings to mandatory or optional will not cause this issue. Please check any other customized coding is causing this issue.