MetaMask Crypto Wallet Error Code User Denied Transaction Signature: How to Fix It

Easy 1-5 minutes Low Severity Verified June 2026
Summarize with ChatGPTSummarize with ClaudeSummarize with Perplexity Add as Preferred Source on Google
Error Code
User Denied Transaction Signature
Brand
MetaMask
Product Type
crypto_wallet
Severity
Low
DIY Difficulty
Easy
Estimated Fix Time
1-5 minutes
The MetaMask 'User Denied Transaction Signature' error occurs when you reject a transaction request in the MetaMask popup window. This is actually a security feature working correctly, but it can be confusing if you didn't intend to cancel the transaction.
Ad

Tools You'll Need

How to Fix Error Code User Denied Transaction Signature

  1. Check if MetaMask popup appeared

  2. Review transaction details carefully

    Never approve transactions from suspicious websites or with unexpected amounts

  3. Click 'Confirm' to approve the transaction

  4. Wait for transaction to process

  5. Retry the transaction if needed

  6. Check for browser popup blockers

Ad

When to Call a Professional

Contact MetaMask support if transactions consistently fail to appear or if you suspect your wallet has been compromised. Seek help from crypto community forums for complex DeFi transaction issues.

Frequently Asked Questions

Why does MetaMask say user denied transaction signature?
This error appears when you click 'Reject' or close the MetaMask popup instead of clicking 'Confirm'. It's a security feature that prevents unauthorized transactions.
How do I approve a MetaMask transaction?
When the MetaMask popup appears, review the transaction details carefully, then click the blue 'Confirm' button to approve and sign the transaction.
What happens if I accidentally reject a MetaMask transaction?
Nothing harmful occurs - the transaction simply doesn't go through. You can retry the same action on the website or dApp to generate a new transaction request.
Why isn't my MetaMask popup showing up?
Check if popup blockers are enabled in your browser, look for the popup behind other windows, or click the MetaMask extension icon to bring the popup to the front.
Can I undo a rejected MetaMask transaction?
No, once rejected, a transaction cannot be undone. However, since rejected transactions don't execute, no funds are moved and you can simply try the transaction again.

Related Error Codes