My AI assistant won't connect to Section Store

Most sign-in problems come from using two browsers, a wrong store address or a sign-in that timed out. Find the message you see below. Most fixes end with starting again from your assistant.

"This sign-in started in another browser. Start again from your AI assistant in this browser."

The sign-in started in one browser and you approved in another. This can happen when your assistant opens your default browser while Shopify admin is in another one.

1. Log in to Shopify admin in the browser where the sign-in page opens. Or make the browser you use for Shopify your default.
2. Start again from your assistant.
3. Do every step in that one browser.

"We couldn't find Section Store on that store. Check the address, or install Section Store first."

1. Check that Section Store is installed on this store.
2. Open your Shopify admin and copy the address from the browser bar. It looks like admin.shopify.com/store/your-store.
3. Paste it into Your store and click Continue.

Read We couldn't find Section Store on that store for every cause.

"This sign-in expired. Start again from your AI assistant."

A sign-in lasts 15 minutes. It also ends once it's used or cancelled. Start again from your assistant.

If you see this right after Continue, your browser may be blocking cookies. Allow cookies for mcp.section.store, or try without private browsing.

"We got too many sign-ins from your network. Wait 10 minutes and start again from your AI assistant."

Wait 10 minutes, then start again. Shared office networks reach this limit faster.

"We can't connect this assistant"

Every sign-in error shows this title. These three messages mean your assistant's request failed:

• "We don't know this assistant. Remove the connector and add it again."
• "The assistant sent a return address we don't accept. Remove the connector and add it again."
• "The assistant sent a sign-in request we can't use. Remove the connector and add it again."

Remove the connector in your assistant, then add https://mcp.section.store/mcp again. If it keeps failing, your client may not support our sign-in. It needs remote MCP with OAuth.

"We don't know this app."

This yellow warning isn't an error. The sign-in returns to a website we don't know. Continue only if you added this app yourself a moment ago.

Other problems

• Shopify asks you to log in: log in with an account that can open Section Store on that store.
• Shopify admin opens the wrong store: go back and check Your store. It fills in the last store you used.
• The URL shows a blank or error page in a browser: that's normal. Paste it into your assistant.
• The assistant asks for an API key: we don't use one. Pick OAuth, or use a client that supports it.
• Your assistant has no custom connector option: check its help pages. We can't change what its plan includes.
• You clicked Cancel by mistake: start again from your assistant.

Still stuck?

Open the chat bubble in the Section Store app or email [email protected]. Include your myshopify address, the assistant you use and the exact message.

Related

• We couldn't find Section Store on that store
• Connect an AI assistant to manage bundles and your cart drawer
• Approve or decline an AI assistant connection
• My AI assistant stopped working with Section Store
• Connect Cursor or Claude Code to Section Store
• AI assistants guide

Also searched as: won't connect, can't connect, assistant connection failed, assistant sign in error, sign-in started in another browser, couldn't find section store on that store, sign-in expired, too many sign-ins, we can't connect this assistant, return address we don't accept, mcp connection error, same browser, oauth error, wait 10 minutes, cookies blocked sign in