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Prerequisites

  • PayPal Business Account
  • Access to PayPal Developer Dashboard
  • Your application ready for integration

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Access PayPal Developer Dashboard

1

Open the PayPal Developer Portal

Go to https://developer.paypal.com, click Log In, and sign in with your PayPal Business account credentials.
2

Open the Developer Dashboard

After logging in, open the PayPal Developer Dashboard, where you can manage applications and credentials.

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Create a New Application

1

Open My Apps & Credentials

In the left sidebar, click My Apps & Credentials, then click Create App.
2

Configure the application

  • App Name: Enter a descriptive name, such as My Store Payment Gateway.
  • Type: Select Merchant (default). Create PayPal Application

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Create a Webhook

1

Add a webhook

Scroll to the end of the application settings and click Add Webhook.Creating Webhook

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Select Webhook Events

1

Select all events

Select All events, scroll down, and click Create.Webhook events

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Get Webhook ID

1

Confirm the webhook was created

After creating the webhook, confirm that it appears in the webhooks list.
2

Copy the Webhook ID

Find your webhook and copy its Webhook ID, such as 7B89XXXXXX2Y. This ID is required for webhook verification.Webhook ID

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Get Client Credentials

1

Open the app credentials

Return to your app dashboard and click the Credentials tab.
2

Copy the Client ID and Secret

  • Client ID: Copy the public identifier.
  • Client Secret: Copy the private key and keep it secure.
These credentials are required for PayPal API authentication.Get Client Credentials

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Add PayPal to Spartan

1

Open the PayPal gateway

Log in to Spartan as an administrator, then go to Modules → Gateways and select PayPal, not PayPal IPN.
2

Configure PayPal

Enter the PayPal credentials and Webhook ID, then click Save Settings.Spartan PayPal configuration

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Troubleshooting

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Common Issues

  1. Invalid Credentials
    • Verify Client ID and Client Secret are correct
    • Ensure you’re using the right environment (sandbox/live)
  2. Webhook Not Receiving Events
    • Check webhook URL is accessible
    • Verify webhook is enabled and configured correctly
    • Check your server logs for errors
    • Make sure your domain is not flagged. ( Check PayPal for more info )