Is there a super term for goods/products and services? A business can sell "goods" (/"products") and "services".

Is there a term that encompasses both of these?

Various words may fit (e.g. "offering"), but I'm looking for the technical term, if there is one.
I'm not aware of any such "technical" term in economics. Goods and services are referred to as goods and services in economics, period. From the example you give in the comments, it looks like you're trying to write an introduction/review of a business. In that case, not using a technical jargon, be it existing or not, would probably be better anyways. By the way, X = "offering" sounds pretty good to me.