The TWIMCO notebook
Field notes.
Useful observations from inside the work.
For people building a better way.
385 notes
Available online does not mean pickable at this DC
The site said in stock. The DC that owns the order has zero on the pick face. Somewhere between network inventory and local pickable stock, your promise got ahead of the aisle.
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OpenUI 1.0 review: your agent should stream your components, not a text box
OpenUI 1.0 wants your agent to answer with your own buttons, forms and charts instead of another wall of text. It's a serious option if you already own a component library and a React app that will keep it.
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The password reset went to spam
A customer asks for a password reset, waits, asks again, and gives up. The email did go out. It landed in spam, or never landed at all, because the newsletter and the reset share a sender and only one of them is set up properly.
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Everyone at the bench is logged in as Packing 1
Peak brings new faces to the packing bench, and the quickest way to get them started is the old shared login taped to the monitor. It works fine right up until a customer opens the wrong order and nobody can say who packed it.
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A marketplace review should come from a finished order
On a marketplace, stars are the thing buyers trust most and question least. If anyone can leave one, sellers will find a way to fill them in. Tie each review to a real, completed transaction and most of the hard problems get smaller.
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The accessibility deadline covers the pages your vendors run, too
Your city's own pages may be in decent shape. The parking payment site, the permit portal and the meeting-agenda tool you license are another matter, and the federal rule counts them. Larger governments have about six months left.
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Apple's rule 2.5.19: show App Review everything your app can do
Apple added guideline 2.5.19 on Friday, and some iOS teams are reading it as a ban on feature flags. Apple calls it an old rule made clearer. What matters is whether the reviewer can see everything your build can do.
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Fine-tuning won't teach the model your price list
When people say they want an AI "trained on our data," they usually mean they want it to know their prices, policies and products. Fine-tuning is the wrong tool for that, and even OpenAI's own guide says so.
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Collect the W-9s in October, not January
Every January someone spends a week chasing contractors for tax forms and adding up what each one was paid. This year the reporting line moved from $600 to $2,000, so the old spreadsheet formula is wrong too. Here's the note to send whoever runs your payables now.
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Follow one holiday return from the product page to the refund
The banner says holiday purchases can come back until January 31. Your returns portal, your support macros and your warehouse may not have heard. One early-November order, followed all the way to the refund, shows where the promise breaks.
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Lightspeed AI agents review: it drafts the purchase order, you still sign it
Lightspeed's AI can now do more than answer questions about your stores. It can draft the reorder, plan a transfer between locations and tag slow stock for clearance, then wait for you to approve. Here's what looks right, what's missing, and who should ask for the beta.
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Who holds the signing key for your Android app?
If your crew installs the company's Android app from a link in an email, a new Google rule will reach you. It's already live in four countries and goes global in 2027. Whether that's a quiet afternoon or a lost week depends on one file somebody may have lost.
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Vercel Shop review: agent-ready on day one, yours to maintain after that
Vercel and Shopify just made a free, open-source storefront that serves product pages to people and to AI shopping agents from the same URL. It's a strong start for a headless store, as long as someone on your side will keep it running.
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Don't start by tracking the crew all day
Office wants to know where the field team is, so the first request is "track location all the time." That's the move that gets denied by the crew, flagged by the app store and drains the phone by two o'clock. Ask what question location has to answer, and capture it then.
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The carrier billed the box, not the candle
A light product went out in a roomy box all season, and the shipping invoices crept up without anyone changing a rate. Nothing was broken. The box was billed by its size, and nobody had told the packing bench which box to use.
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One product, five sellers, five listings
Search your marketplace for one popular product and count the results. If five sellers each made their own listing, buyers are comparing photos and titles when they wanted to compare price, condition and delivery. That's a catalog decision you can make on purpose.
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Call your AI receptionist before a customer does
Thirty minutes, one phone, five calls. Ring the AI that answers your business line the way real customers will, including the awkward ones, and write down what it said, what it booked and who heard about it afterwards. Most of what needs fixing shows up by the third call.
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Somebody cancelled. Who gets the appointment?
When a license or permit appointment frees up, your booking system already has a rule for who gets it, even if nobody wrote it down. Usually it's whoever refreshes fastest. Here are four rules a public office can choose instead, and what each one asks of staff.
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The deposit doesn't match the sales report
Tuesday's sales were one number. The money that landed in the bank on Thursday is another. Somebody spends Friday afternoon finding the difference by hand, every week. Most of that afternoon can be a matching job that only asks a person about the leftovers.
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The gift arrived with the price inside
She ticked the gift box, typed a message and sent it to her brother's address. He opened it to find the receipt, the price and a text from the courier that had spoiled the surprise two days earlier. Gift orders need their own path.
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Tell us where you want to go. We’ll find the first thing worth changing.
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