I believe what Richard is saying can accomplish what you are asking. But only if you don’t use variations. The reason is because when you make a sale with an MV, the custom label ends up being the (SKU) for that variation. But off topic, if you want to see your Custom Label in active listings, I believe you need to customize that page to show it. I use custom label to categorize my listings so I can sort them as such when I’m viewing active listings... shirts, hats, pants, etc.
Now onto your question. Yes, you use My Notes to accomplish what you are asking. What you have to do is put that “shipping chart info” in My Notes within your active listings. Only then when you make any sale with that listing that the info retains itself in your awaiting shipments page. Then within that page, you are free to change the My Notes if you need to “change color”, “wait to ship”, or any other adjustment Richard mentioned. The change you make WILL NOT affect the other sales of the same listing.
I use My Notes in a similar fashion. I put the date that I audited it’s inventory of that listing. So it always shows up in the awaiting shipments. But if a buyer wants a change of color or size, I edit that specific My Note for that order only. The logic works perfectly HOWEVER, a few months ago there’s a glitch that comes and goes. I’ve written about it here before and others confirmed that sometimes when you change the awaiting shipments note for only one order, eBay randomly also changes it for other My Notes too. And when you refresh, it’ll change it back. Super confusing but I haven’t seen it happen for awhile. Good luck.
