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f you’re seeing Banking Error 103 or 310 in QuickBooks, it usually means there’s a problem connecting your bank account to QuickBooks Online. These errors are common when login credentials don’t match or when your bank’s website requires additional verification.

Let’s break down what these errors mean and how to fix them step by step.

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🔎 What is QuickBooks Banking Error 103?

Error 103 appears when:

• The User ID or password entered in QuickBooks doesn’t match your bank’s website login.

• You recently updated your bank password but didn’t update it in QuickBooks.

• There are multiple login accounts for the same bank.

👉 In simple terms: QuickBooks cannot verify your banking credentials.

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🔎 What is QuickBooks Banking Error 310?

Error 310 generally occurs when:

• Your bank account is already connected in QuickBooks.

• There are duplicate bank connections.

• The bank feed connection failed due to server or sync issues.

👉 This error often indicates a duplicate or previously linked account problem.

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✅ Solutions to Fix QuickBooks Banking Error 103

1️⃣ Verify Bank Login Credentials

• Open your bank’s official website.

• Manually log in using your User ID and password.

• If login fails, reset your password directly on the bank’s website.

• Once confirmed, update the same credentials in QuickBooks.

Steps in QuickBooks Online:

1. Go to Banking / Transactions

2. Select the affected account

3. Click Edit (✏️ icon)

4. Choose Edit sign-in info

5. Enter updated credentials

6. Click Update

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2️⃣ Check for Multiple Bank Logins

Some banks allow:

• Personal login

• Business login

• Separate sub-user access

Make sure you’re using the correct login type that matches your bank account.

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3️⃣ Complete Additional Bank Verification

Some banks require:

• Security questions

• OTP verification

• CAPTCHA validation

Log in directly on your bank’s site first and complete any pending security prompts.

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✅ Solutions to Fix QuickBooks Banking Error 310

1️⃣ Check for Duplicate Bank Connections

• Go to Chart of Accounts

• Look for duplicate bank accounts

• Disconnect unnecessary duplicate feeds

To disconnect:

1. Go to Banking

2. Select the account

3. Click Edit

4. Select Disconnect this account on save

5. Save & Close

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2️⃣ Refresh the Bank Feed

• Go to Transactions

• Click Update

• Wait for QuickBooks to refresh the connection

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3️⃣ Reconnect the Bank Account

If the issue continues:

• Disconnect the bank feed

• Wait a few minutes

• Reconnect the account manually

Make sure you link it to the existing account instead of creating a new one.

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4️⃣ Clear Browser Cache (For QuickBooks Online Users)

Sometimes browser issues cause error 310.

• Clear cache and cookies

• Try incognito mode

• Switch browser (Chrome, Edge, Firefox)

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⚠️ Additional Troubleshooting Tips

✔ Check your bank’s website for maintenance alerts
✔ Ensure your QuickBooks subscription is active
✔ Make sure third-party access is enabled in your bank settings
✔ Avoid changing bank passwords frequently without updating QuickBooks

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🚀 When to Contact Support?

If:

• The issue persists after credential verification

• You keep getting repeated 103 or 310 errors

• Bank feeds stop updating for more than 24 hours

You may need professional QuickBooks assistance to securely reconnect your banking feeds without affecting financial reports.

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🎯 Final Thoughts

QuickBooks Banking Errors 103 and 310 are usually related to:

• Incorrect login credentials

• Duplicate bank connections

• Bank verification or sync issues

Most of the time, simply verifying your bank login and updating credentials inside QuickBooks resolves the issue quickly.