🔧 Fix the “400 Session Invalid” Error When Connecting Instagram to ZyloChat

When connecting your Instagram account to ZyloChat, you might encounter the “400 Session Invalid” error. This is a common issue across many automation tools and usually stems from Instagram session or network problems.

📖 You can also read a similar help article on this issue by Cool Tabs: 400 Session Invalid – Instagram Connection Error and How to Fix It

🔍 Why This Error Happens

Instagram session expired
Session token mismatch
Frequent login attempts or account switching
Browser cache conflicts
Suspicious network use (VPNs, public Wi-Fi)

✅ Step-by-Step Troubleshooting

1️⃣ Refresh Your Instagram Session

Log out from all Instagram devices
Log in again from a private/incognito tab
Retry connecting on ZyloChat

2️⃣ Clear Browser Cache & Cookies

Go to browser settings
Clear cache/cookies (Select All Time)
Restart browser and try again

3️⃣ Use Incognito Mode

Open a private/incognito tab
Log into Instagram
Connect Instagram via the same window on ZyloChat

4️⃣ Switch Your Network

Try another network (e.g., mobile hotspot)
Avoid VPNs or proxies during the process

5️⃣ Ensure You’re Using a Professional Account

Go to Instagram > Settings > Account > Switch to Professional
Ensure your account is linked to a Facebook Page

6️⃣ Enable Instagram in ZyloChat

Dashboard → Channels → Instagram
Click Connect and follow the prompts
Grant all requested Meta/Facebook permissions

7️⃣ Reauthorize ZyloChat via Facebook

Go to Facebook Business Integrations
Remove ZyloChat
Reconnect via ZyloChat and grant permissions again

💡 Still Stuck?
Ensure your Instagram and Facebook are correctly linked. For help, email contact@zylochat.com with your Instagram username and a screenshot.

🛡️ Pro Tips

Avoid account switching frequently
Clear browser cache periodically
Use stable networks and avoid public Wi-Fi

🚀 Wrapping Up

Although the “400 Session Invalid” error can be annoying, it’s usually quick to resolve. At ZyloChat, we’re always working to improve your experience. If you’re stuck, don’t hesitate to reach out. 💬✨