Frequently Asked Questions
Everything you need to know about NotBot, from setup to troubleshooting.
Getting Started
How does NotBot know when someone wins?
You sign into your selling platform inside NotBot's built-in browser, and it watches your stream. On Whatnot it picks up auction wins, giveaways, Buy It Now purchases, and accepted offers automatically. On Poshmark Live it picks up auction wins and giveaways. On eBay Live and District it picks up auction wins and Buy It Now purchases. On TikTok Shop, sign in and open your TikTok LIVE Manager inside NotBot, and it picks up auction wins and Buy It Now purchases. Nothing extra to set up.
Do I need my phone and my computer?
Most sellers do. Sell from your phone or iPad like you normally do, and NotBot runs on your computer alongside your show, printing labels as buyers win. You can also go live from inside NotBot's built-in browser on the computer alone by turning on Allow camera and microphone in Customize › Advanced Settings › Show behavior.
What do I need to use NotBot?
A seller account on a supported platform (Whatnot, Poshmark Live, eBay Live, District, or TikTok Shop), a thermal label printer, and a Mac or Windows computer. We recommend removable labels so they peel off cleanly without leaving residue.
How fast is setup?
Under 5 minutes. Download the desktop app, connect your printer, and choose your label size. You're ready to sell.
Does it work on Mac and Windows?
Yes! Mac requires macOS 12 (Monterey) or later, and works on both Intel and Apple Silicon (M1/M2/M3/M4). Windows 10 and 11 are both supported. If you're on macOS 11 (Big Sur), v1.2.6 is the last version that will run on your machine.
Printing & Labels
What printers work?
If your computer can print to it, NotBot can use it. We recommend a USB thermal printer for the best experience, but network and Bluetooth printers work too.
What label sizes can I use?
1x1", 2x1", 1x3", 2x3", and 4x6". You can change how your labels look in the label editor, under Customize › Labels. We recommend removable labels so they peel off cleanly.
What are the three print modes?
"Every Item" prints a label for each win, great for tagging individual items. "Buyer Only" prints one label per buyer. Stick it on a box and toss their items in as they keep winning. "Every Item + Buyer" does both at once so you can tag items and sort by buyer.
How do I print a label for every item a buyer wins?
By default, NotBot is set to "Buyer Only" mode, which prints one label per buyer. To print a label for every win, open Settings and change Print Mode to "Every Item", or "Every Item + Buyer" if you want both item labels and box labels.
Do I need two printers?
Nope, you only need one printer. Some sellers use a separate printer for small labels and large ones, and Customize › Advanced Settings › Printers & routing lets you send each label type to its own printer and size. With one printer, everything prints there.
Does NotBot print shipping labels?
No. NotBot prints small organization labels during your show so you can sort items by buyer as you go. You still generate your shipping labels through Whatnot or your preferred shipping software after the show, but NotBot makes that part much faster because everything is already organized.
When do labels print? Do I have to wait until after my show?
Labels print in real time as soon as someone wins. NotBot helps you organize and prep your packages while you're still live, saving you all that work after the show.
Features
How do buyer numbers work?
In Buyer Only and Every Item + Buyer, the first buyer gets #1, the next gets #2, and so on. If the same buyer wins again, they keep the same number the whole show. New show, numbers start over. Every Item mode gives out no numbers.
Can I change how my labels look?
Yes. Open Customize › Labels to see each label your current settings print, then click Edit to open it in the label editor. Add fields like the buyer, box number, and item, plus your own text, a logo, lines, and boxes. Move and resize anything, preview it for each kind of sale, and test print it before your show.
How do updates work?
NotBot downloads new versions by itself. When one is ready, a banner offers Restart & Update; NotBot never restarts on its own, so a live show is never cut off. If you do not restart, the update installs the next time you reopen NotBot.
Can I move NotBot to a second monitor?
Yes, you can drag the NotBot window to any display you like. The winner popup can go on any screen too: open Customize › Advanced Settings › Winner popups and click where you want it on the picture of your screens. Auction wins, giveaways, and purchases each have their own popup settings.
Can I put the date or time on my labels?
Yes. In the label editor, add the Date, Time, or Date and time field. With one selected, Date and Time choices appear in the panel on the right so you can pick the format per label. Date options include "Mar 26", "03/26/2026", "26/03/2026", "2026-03-26", and "March 26, 2026". Time options are "2:30 PM", "14:30", and "Hide time".
Can I turn off printing for giveaways?
Yes. Open Customize › Advanced Settings › Label types and turn off Giveaway win. No giveaway label prints in any mode and giveaways give out no box number. The giveaway still appears in show history. If you only want to change what giveaways print in Buyer Only mode (an item label, a box label for new buyers, or both), select Giveaway win on the same page and use "In Buyer only mode, giveaway wins print" instead.
Does NotBot print labels for accepted offers?
Yes, on Whatnot. When you accept an offer on a shop listing and the sale closes, NotBot prints a label the same way it does for a Buy It Now purchase. The label shows an "OFFER ACCEPTED" badge so accepted offers are easy to spot at a glance. Declined or cancelled offers are ignored. Poshmark Live and eBay Live do not publish offer events on their live feeds, and NotBot does not track them on District or TikTok Shop, so accepted-offer printing is Whatnot only today.
Can I send accepted offers to a different printer or label size?
Yes, for the item label. In Customize › Advanced Settings › Printers & routing, the "Accepted offer" row in Which labels print where lets you pick a separate printer and label size for accepted-offer item labels. Box labels are not routed per sale type: they follow the "Box labels (buyer)" row, so packers always pull box labels from one place. Leave a row on Default to follow the printer and size on Basics.
Can I skip labels for accepted offers?
Yes. Turn off Accepted offer in Customize › Advanced Settings › Label types. That skips the label and the box number for accepted offers. The sale is still recorded in show history and totals, so revenue stays accurate; only the label and buyer number are skipped.
Can I skip labels for flash sales?
Yes. In Customize › Advanced Settings › Label types, select Buy It Now and turn off "Include flash sale purchases". That skips the label and the box number for flash sale purchases, and regular Buy It Now purchases keep printing. To skip every Buy It Now sale, turn off Buy It Now itself.
A buyer has a really long username and the text on their label is tiny. Is there a fix?
Text set to Shrink long text to fit gets smaller until the name fits, so a very long username can print small. In the label editor, select the Buyer field and make it wider, or turn on Wrap onto more lines so a long name can use two lines. Try a long name under the label shows how it will print.
Troubleshooting
Why can't my camera or microphone work inside NotBot?
Camera and microphone access is off by default because most sellers go live from a phone or iPad and run NotBot alongside on a computer. If you want to go live from inside NotBot's built-in browser instead, turn on Allow camera and microphone in Customize › Advanced Settings › Show behavior and it will work.
NotBot can't find my printer. What do I do?
NotBot can only see printers that your computer has already recognized. Try printing a test page from another program first to make sure your printer is working. Then in NotBot, open Settings (the button at the top of the panel on the right) and click the refresh button next to the Printer list. If it still doesn't appear, fully quit NotBot and reopen it. On Mac, make sure you have the official printer driver from the manufacturer installed.
Why are my labels printing crooked or misaligned?
This usually means the label size selected in NotBot doesn't match the actual labels in your printer. Double-check that the size in Settings matches your physical labels (e.g., 4x6"). If labels come out sideways, set Feed direction for that printer in Customize › Advanced Settings › Printers & routing. You can also fine-tune the layout in the label editor.
The download or installation failed on Windows. What should I do?
This is almost always Windows Defender or another antivirus blocking the install. If you see a blue pop-up saying "Windows protected your PC," click "More info" then "Run anyway." If you have a third-party antivirus, check its quarantine list and mark NotBot as safe.
I'm getting a popup saying NotBot requires macOS 12. I thought it supported macOS 10.15 and newer.
Starting with v1.2.7, NotBot requires macOS 12 (Monterey) or later due to an update to the underlying framework. If you're running macOS 11 (Big Sur) or earlier, v1.2.6 is the last version that will work on your machine. You can download it from your MellowState dashboard. Upgrading to macOS 12 Monterey is free and available on most Macs from 2015 onward. Check in System Preferences › Software Update.
My printer is feeding extra blank labels after each print, or labels are coming out blank.
This is almost always a calibration issue. The printer needs to detect where each label starts and ends, and when that calibration is off it feeds extra blanks or prints at the wrong position. Most thermal printers have a calibration sequence; check your printer's manual for the exact steps. After calibrating, do a test print from NotBot (the Test Print card in Settings, or Customize › Advanced Settings › Basics) to confirm it is working.
The video in the built-in browser freezes during my show.
This is almost always caused by your laptop's display or system going to sleep mid-show. On Mac, go to System Settings › Lock Screen and set the display to never turn off, and go to System Settings › Battery › Options and enable "Prevent automatic sleeping on power adapter when display is off." On Windows, go to Settings › System › Power & battery › Screen and sleep (Power & sleep on Windows 10) and set both timeouts to Never while plugged in. Keep your laptop plugged in during shows.
The Whatnot page inside NotBot looks like the mobile version and my Auction and Giveaway tabs are missing.
This happens when the browser panel is too narrow and Whatnot switches to its mobile layout. Make the NotBot window as wide as possible, then drag the divider between the browser and the NotBot panel to the right to give the browser more room. Refresh the Whatnot page after resizing. If it still looks like mobile, check your display scaling setting (Windows: Settings › Display › Scale, Mac: System Settings › Displays › Resolution). Scaling at 150% or higher can trigger the mobile layout even when the window looks wide enough.
My print queue is stuck on Mac and labels have stopped printing.
The Mac print system occasionally gets a stuck job that needs to be cleared at the OS level. Open System Settings, go to Printers & Scanners, select your printer, and click Open Print Queue. Delete any stuck jobs. Then go back to NotBot and retry any failed labels from the print queue or reprint from the Auction History tab.
My logo is showing as a solid black rectangle on the label.
This is caused by a logo image with a transparent background. The transparency renders as black when the label is sent to the printer. Re-export your logo as an RGB PNG with a white background and add it again from the logo library in the label editor. It will look identical on the label since the labels themselves are white.
Billing & Plans
Can I cancel anytime?
Yes. Try free for 7 days, then $30/month. No contract, cancel whenever you want.
How does the 7-day free trial work?
You get full access to all features for 7 days, and your card is not charged when you start the trial. After the trial ends, the $30/month subscription kicks in. No contract, cancel anytime.
Support
What if I need help?
Email us at support@mellowstate.com. We're happy to help you get set up.