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Diary

The Day Someone Deregistered From IOSS Mid-Conversation

3 min read
Check the status before you promise the route. Tax registration changes can alter the right shipping plan in the middle of an otherwise ordinary order.

From the operations desk

Got a message today from a long-running client that stopped me for a second: due to unprofitable sales and rising EU tariffs, he's deregistering from IOSS entirely and asked us to stop using his number on any shipments going forward. That's not a small decision — it's someone recalculating their whole EU strategy in real time because the cost math stopped working. We updated everything on our end immediately, no questions asked, but it's a good reminder that these policy shifts aren't abstract for the people actually running the stores.

Speaking of which — we spent a good chunk of today explaining the new EU customs fee to basically everyone in our other group chats. It's landing at an awkward moment and a lot of clients are trying to get ahead of it, including one who wired over a solid chunk of prepaid inventory funds specifically to lock in stock before the new charges apply. That kind of upfront trust from a newer client is honestly one of the better feelings in this job.

Elsewhere, we had a client racing the clock in a slightly more dramatic way — waiting on a bank transfer to clear before a deadline, worried about missing a tax cutoff by hours. We told him we'd trust that the funds were coming and shipped anyway. He was very grateful, we joked about him owing us a coffee next time he's in town, and it all cleared fine the next day.

On a lighter note, we finished getting a brand-new dropship store fully connected to our systems today — tracking numbers, automatic fulfillment, the works. That client's already testing a wide spread of products, which always makes for a fun and slightly chaotic first few weeks.

Also handled a handful of failed deliveries where the courier couldn't reach the address — mostly just a matter of getting the local carrier's contact details to the customer quickly before the parcel gets returned.

Treat a seller's tax registration as live configuration

Treat a seller's tax registration as live configuration. When they deregister, stop using the number on the next shipment rather than at the next review, because the shipments in flight are the ones that create the problem. Decide in advance which clients you will ship for before a transfer clears, so that answer is a standing position rather than a favour granted under time pressure.