[GNC] Can I add a customer and/or vendor to a previously entered transaction?

[Fred Bone]

On 12 December 2021 at 15:06, Dr. David Kirkby said:

> I have entered a couple of transactions into GnuCash, and entered some
> vendors and customers. However, the transactions are not associated with
> any vendors, and I'm unsure how to do that, if it is possible - see
> screenshot

While I don't use the relevant features myself, I thought the Help Manual 
and the Tutorial and Concepts Guide explained it all rather well.

AIUI you don't attach txns to vendors (or customers).