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CellerHub Docs

Buying and printing labels

A label reaches an order one of three ways, depending on the provider:

  • The marketplace already made it. Mercari issues its own label the moment a buyer pays. CellerHub just fetches and prints it — nothing is bought.
  • CellerHub buys it for you. Shippo and EasyPost quote live rates for a parcel and buy the one you (or CellerHub, picking the cheapest) choose.
  • You buy it yourself, then tell CellerHub. Pirate Ship has no API: you export the orders that need labels as a CSV, buy the postage on Pirate Ship’s own site, then import their tracking export back into CellerHub.

eBay’s own labels are also planned for a future release — see that page for the current state.

Which provider an order uses

Section titled “Which provider an order uses”

When you open the ship dialog for an order, CellerHub works out a default label source in this order:

  1. Mercari’s own label, if Mercari already issued one for that sale.
  2. The default label provider you’ve set for that channel, in Settings → Shipping & labels.
  3. Any other connected provider that can buy a label.
  4. Pirate Ship’s CSV export, as the fallback that always works because it needs no account of its own.

You can always override the provider for a single order from the ship dialog, row by row.

The ship dialog with one row per order, each with its own provider, rate, and outcome.The ship dialog with one row per order, each with its own provider, rate, and outcome.

Setting up a provider

Section titled “Setting up a provider”

Add your credentials once, in Settings → Shipping & labels. A saved key is never shown back to you in full — only its last few characters — so pasting a new key there always replaces the old one; leaving the field blank keeps what you already saved.

Buying is honest about what happened

Section titled “Buying is honest about what happened”

Buying a label always tells the channel first, and only records the label and tracking in CellerHub if the channel accepted it — so CellerHub never shows a buyer tracking that doesn’t actually exist. If a purchase is refused, the order stays unshipped, but if postage was already paid for, that label is kept rather than thrown away.

Voiding a label

Section titled “Voiding a label”

You can void a label you no longer need, as long as the order hasn’t already been marked shipped and told to the marketplace — once a channel and its buyer have seen tracking, CellerHub can’t take that back, so voiding is refused at that point.