Turn Every Fourthwall Merch Purchase into a Stream Moment

Chat does not know a merch sale happened unless you tell them. Merch Alert does the telling automatically: when someone buys from your Fourthwall store, an alert card pops on screen with the buyer’s name and the item they chose, without you pausing what you are doing.

It is free with Meld Studio and takes one drag to add to a scene.

What the alert shows

The overlay listens for Fourthwall purchase events in real time. The moment a sale clears, a card pops on stream showing who bought and what they got. It handles the callout automatically, so the channel surfaces every purchase even when you are mid-game, mid-commentary, or focused on something else entirely.

There are no viewer commands, no polling, and nothing you need to trigger manually. The purchase is the trigger. Merch Alert fires in response and clears when done, so it never holds the screen longer than the moment warrants.

For streamers running a Fourthwall store alongside a regular broadcast, that matters. Chat sees each buyer called out in real time, which keeps the store front of mind without requiring a pitch from you mid-stream. During a live drop, the first sale appearing on screen sets a social signal in chat that tends to move more purchases than a verbal announcement alone.

Customizing the look and adding it to your stream

The alert card ships with a default design that displays the buyer name and the item they chose. Meld Spark, the AI overlay editor included with Meld Studio, reshapes the card from a plain-English prompt when you want it styled to match your channel. A request like “Restyle the merch alert to match my brand colors and logo” applies in seconds, no code required. Changes persist between sessions so the card looks right every time you go live.

The overlay runs on Twitch, YouTube Live, Kick, and TikTok Live through Meld Studio, signing you in once and pulling purchase events from Fourthwall across every platform you stream to. If you already run OBS, the free Spark Plug for OBS plugin adds the alert to your existing OBS scene as a browser source, with the same Fourthwall integration and the same Meld Spark customization from a plain-English prompt.

Use cases

• During a live merch drop or product launch

  When you announce a new product and the first sale comes through, the timing matters. Merch Alert puts that first buyer on screen immediately, which sets a social signal in chat that often pulls more purchases before the stream moves on. You do not need to pause and announce it yourself.

• As a passive thank-you during any regular stream

  You do not need a dedicated merch push for the overlay to earn its place. When a regular buys mid-session, the alert surfaces their name and the item they chose without interrupting your commentary or gameplay. Streamers with steady Fourthwall sales use it as background celebration that reinforces the store without a hard pitch from the streamer.

Stream events it reacts to

Frequently asked questions