The shape of the problem
A buyer on a marketplace sees your listings and nothing else. A follower on social sees your posts and one link. Somebody who took a card at a market has a piece of paper.
None of them can see the whole picture, and you cannot put four addresses in one profile field.
A page in the middle solves it. One address goes everywhere, and the page explains what is where.
Which channel goes first
The order on the page is a business decision rather than a design one.
Most sellers put their own site first, because the margin is better and the customer relationship belongs to them. That is usually right, but not always: if your marketplace listings convert far better because of the buyer protection people expect there, sending everyone to a site they do not trust yet costs you sales.
The honest version is to lead with whichever one actually converts, and use the page to explain why the other exists. Free postage on the site, buyer protection on the marketplace, and the choice is theirs.
Label them like a person would
Buy on Etsy and Shop the website are not equivalent labels, and the difference matters to somebody deciding between them.
- Say what is different. Full range on the website. Bestsellers on the marketplace.
- Say what is faster. Same day dispatch from the site, three days from the stockist.
- Say where you will be in person, with the date, and take it down when the date passes.
The page is doing the job a shop assistant would do, which is helping somebody choose rather than presenting them with four doors.
Separate links, one destination
Give each channel its own short link even when several point at the same place.
One for the Instagram bio, one for the marketplace shop announcement, one for the market stall card, one for the newsletter. The buyer sees no difference and you get four separate numbers.
After a month, the answer to which channel is worth your time stops being a feeling and becomes a list.
The channel with no analytics
A market stall, a craft fair, a shelf in somebody else's shop. None of these send a referrer and none of them appear in any report.
A dedicated short link on the card, the tag or the shelf talker is the only way to see them at all. Give the fair its own link and you find out how many of those conversations turned into a visit that evening.
Sellers who do this once tend to keep doing it, because the answer is almost always surprising in one direction or the other.
When to close a channel
Running four channels has a cost in listings, stock reconciliation and attention. At some point one of them is not paying for itself.
The link statistics tell you about interest, not revenue, so read them alongside your actual sales. A channel with few clicks but high order values is not the one to close.
When you do close one, keep its link alive and point it at the channel you kept. Everything already printed and posted then quietly redirects instead of breaking.