For Pigu Sellers: Stop Wasting Mondays on Marketplace Invoices

If you sell on pigu.lt, 220.lv, kaup24.ee, or hobbyhall.fi, you know the drill. Every Monday morning, you open the Pigu seller portal, scroll through last week’s orders, and start copying buyer details into your invoicing software. Customer name. Address. VAT ID, if any. Line items. Totals. One. Order. At. A. Time.

Multiply by four countries and it eats half your week before you’ve shipped anything.

Meet Rūta

Rūta runs a small home-goods brand from Kaunas. She started on pigu.lt three years ago, added 220.lv and kaup24.ee last year, and just launched on hobbyhall.fi. Three new channels means three times the paperwork — different VAT rules, different invoice series, different currencies in some cases.

She used to handle it with a spreadsheet and a coffee. Now it’s a spreadsheet, three coffees, and a quiet resentment.

The Real Cost

The problem isn’t filling in one invoice. It’s the context switch — open Pigu, find the order, copy the address, paste into your invoicing tool, pick the series, check the VAT logic, generate the PDF, upload back to Pigu so the buyer sees it. Each cycle takes 2–3 minutes. A hundred orders a week is four hours of pure clerical work — and four hours of attention you owe your suppliers, your photos, your product page copy.

And it gets worse when something breaks. A returned order needs a credit note. A B2B buyer asks why the reverse-charge note is missing. A buyer in Latvia got a Lithuanian VAT rate by mistake. Each fix is another round trip.

What Automation Actually Solves

Haiku’s Pigu integration is built for this exact pain. Once it’s connected, it fetches your orders across all four channels, applies the right invoice series and seller block per country, handles VAT rules per channel, and (when you’re ready) creates invoices automatically — credit notes too, the moment an order is returned. It can even upload the PDF back to Pigu so the buyer sees it without you lifting a finger.

The job runs once a day. You wake up to a digest email summarising what was created overnight. Mondays become about growing the business again.

When It’s a Bad Fit

If you’re doing fewer than 5 orders a month, the manual approach is genuinely faster than setting anything up. If you sell on Pigu but also need invoices in a system Haiku doesn’t talk to (some legacy ERPs), the integration won’t replace that.

For everyone in between — sellers with 20 to several thousand orders a month across the Pigu family — this pays for itself in the first week.

How to Set It Up

Connecting takes a few minutes: sign in to Settings → Pigu with your seller credentials, then configure each country tab (LT, LV, EE, FI) with the right invoice series, seller block, and VAT settings. Start with manual invoice creation for a handful of real orders to verify everything looks right, then turn on automation channel by channel. Full step-by-step in Pigu integration: setup and invoice management.

Ready to Reclaim Your Mondays?

Sign up free at haiku.lt — 500 invoices on the free plan is enough to validate the whole flow on real orders before committing to anything.

Questions? Email dalius.dobravolskas@gmail.com.