Validations based on Listing

Hi Experts,

We are developing a custom program to upload the Lower and Capacity values for the SKU's in a custom table for every store.

While uploading the data, we want to put a validation based on the Listing, so that we can put a check while updating the table.

The reason being, if a particular SKU is not listed for a Store, then we don't want that SKU be updated in the table ( for reduced table value maintenance).

We are using Listing procedure B3 by default for all SKU's in the article master.

But I am not sure, how to put a validation check here.

Could you please help me in this scenario?

Regards

Nainar