We want to know where does SMC validate the item attributes?

Summary: We want to know where does SMC validate the item attributes? Does it use the OM: Item validation org? Suppose we want to have the item as subscription in one org but non subscription in another, but both have same OM : item validation org can this be done?

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We want to know where does SMC validates the item attributes? Does it use the OM: Item validation org? Suppose we want to have the item as subscription in one org but non subscription in another, but both have same OM : item validation org can this be done?