Troubleshooting Common WooCommerce PayPal Payments Connection and Onboarding Errors
Content
Many WooCommerce store owners rely on the WooCommerce PayPal Payments plugin for a modern checkout experience. However, connection and onboarding issues can sometimes prevent a successful setup. This guide covers the most common errors and their solutions, based on community reports.
Common Onboarding & Connection Errors
Users frequently encounter a few specific errors during the setup process:
- "Error retrieving plugin details" / "Error retrieving onboarding details": The settings page may appear blank or fail to load properly.
- "We could not complete the onboarding process": The connection process fails to finish, often leaving card processing features unavailable.
- Infinite Login Loop: After successfully connecting in PayPal's interface, clicking "Back to WooCommerce" just prompts you to log in again, creating a loop.
- "Could not create token" / "Authentication with PayPal failed": The plugin cannot authenticate with PayPal's API to process payments.
Why These Errors Happen
These issues can stem from various sources, including browser caching, conflicts with other plugins or themes, outdated plugin configurations, or temporary hiccups in the communication between your site and PayPal's servers. The onboarding process is handled within a PayPal interface, so some requirements (like being prompted to convert a personal account to a business account) are dictated by PayPal's own policies, not the plugin itself.
Top Troubleshooting Steps
- Clear Caches: Start by clearing your browser cache and any server-side or plugin-based caching on your WordPress site. Cached data can interfere with the onboarding scripts.
- Conflict Test: A theme or plugin conflict is a very common cause. Temporarily switch to a default WordPress theme (like Storefront) and deactivate all plugins except for WooCommerce and PayPal Payments. If the issue resolves, reactivate them one by one to identify the culprit.
- Manual API Connection: If the automated onboarding is failing, you can try a manual connection. In the plugin's settings, scroll to the "Manual API Credentials" section (often under an "Advanced" tab). You can generate and input your API credentials directly from your PayPal business account.
- Check for Updates: Ensure you are running the latest version of the WooCommerce PayPal Payments plugin, WooCommerce, and WordPress. Many bugs are patched in subsequent releases.
- Wait and Retry: For onboarding issues, sometimes simply waiting 5-10 seconds on the final confirmation screen in PayPal before clicking "Back to WooCommerce" can allow processes to complete correctly.
- Check Logs: Enable logging in the plugin's settings (under the "Connection" tab). After reproducing the error, check the logs (WooCommerce > Status > Logs) for detailed error messages that can pinpoint the exact API failure.
- Review PayPal Account: Ensure your PayPal business account is in good standing and has no restrictions. Some features require specific approvals from PayPal.
Advanced Checks
- Site Migration Issues: If you recently moved your site, old URLs might be cached. Use a database search tool to find and replace any lingering old URLs in your database (always back up first).
- Nonce and Caching: If you see "Could not validate nonce" errors, ensure your caching plugin is configured to not cache the checkout, cart, or PayPal scripts and pages. Most caching plugins have exclusion settings for this purpose.
By methodically working through these steps, most connection and onboarding problems can be resolved, allowing you to successfully integrate PayPal Payments into your store.
Related Support Threads Support
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Installing paypal plugin on 2nd site…https://wordpress.org/support/topic/installing-paypal-plugin-on-2nd-site/
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“Could not Validate NONCE?”https://wordpress.org/support/topic/could-not-validate-nonce-5/
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Paypal Buttons not working anymore and translatedhttps://wordpress.org/support/topic/paypal-buttons-not-working-anymore-and-translated/
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Something went wrong. Please try again or choose another payment source.https://wordpress.org/support/topic/something-went-wrong-please-try-again-or-choose-another-payment-source-38/
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PayPal not working on Safarihttps://wordpress.org/support/topic/paypal-not-working-on-safari/
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Payment Setup Not Workinghttps://wordpress.org/support/topic/payment-setup-not-working/
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Error processing checkout. Please try again.https://wordpress.org/support/topic/error-processing-checkout-please-try-again-109/
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Something went wrong. Please try again or choose another payment source.https://wordpress.org/support/topic/something-went-wrong-please-try-again-or-choose-another-payment-source-37/
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URGENT!! Suddenly website slow downhttps://wordpress.org/support/topic/urgent-suddenly-website-slow-down/
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Problems with GERMANIZEDhttps://wordpress.org/support/topic/problems-with-germanized/
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Fatal errorhttps://wordpress.org/support/topic/fatal-error-4772/
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PayPal Payments is almost readyhttps://wordpress.org/support/topic/paypal-payments-is-almost-ready/
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HUGE security breach! Please help!https://wordpress.org/support/topic/huge-security-breach-please-help/
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Could not create tokenhttps://wordpress.org/support/topic/could-not-create-token-7/
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Wont connect to PayPalhttps://wordpress.org/support/topic/wont-connect-to-paypal/
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Issue: Something went wrong. Please try again or choose another payment source.https://wordpress.org/support/topic/issue-something-went-wrong-please-try-again-or-choose-another-payment-source/
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Paypal account still working after switchinghttps://wordpress.org/support/topic/paypal-account-still-working-after-switching/
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Paypal Payments plugin activation does nothinghttps://wordpress.org/support/topic/paypal-payments-plugin-activation-does-nothing-2/
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paypal gateway Cant’ set uphttps://wordpress.org/support/topic/paypal-gateway-cant-set-up/
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Issue after plugin upgrade to version 2.3.1https://wordpress.org/support/topic/issue-after-plugin-upgrade-to-version-2-3-1/
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checkout_error eventhttps://wordpress.org/support/topic/checkout_error-event/
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Username not allowedhttps://wordpress.org/support/topic/username-not-allowed/
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payment window closed in 1 secondhttps://wordpress.org/support/topic/payment-window-closed-in-1-second/
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Redirection to ideal failshttps://wordpress.org/support/topic/redirection-to-ideal-fails/
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Paypal payments not workinghttps://wordpress.org/support/topic/paypal-payments-not-working-3/
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Woocommerce Paypal issuehttps://wordpress.org/support/topic/woocommerce-paypal-issue-3/
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Error retrieving detailshttps://wordpress.org/support/topic/error-retrieving-details/
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“Could not validate nonce” error in Chrome consolehttps://wordpress.org/support/topic/could-not-validate-nonce-error-in-chrome-console/
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Nonce Issue With Cachinghttps://wordpress.org/support/topic/nonce-issue-with-caching/
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Sorry, it seems that there are no available payment methodshttps://wordpress.org/support/topic/sorry-it-seems-that-there-are-no-available-payment-methods-5/
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Template issues with active paypal pluginhttps://wordpress.org/support/topic/template-issues-with-active-paypal-plugin/
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Theme conflicthttps://wordpress.org/support/topic/theme-conflict-67/
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Can’t complete purchase on PayPalhttps://wordpress.org/support/topic/cant-complete-purchase-on-paypal/
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Problem with connecting Paypal account to woocommercehttps://wordpress.org/support/topic/problem-with-connecting-paypal-account-to-woocommerce/
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Version 3.0.6 Activation Loophttps://wordpress.org/support/topic/version-3-0-6-activation-loop/
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Possible phishing attempthttps://wordpress.org/support/topic/possible-phishing-attempt-3/
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New update does not work/Paypal permanently deactivated my brand new accounthttps://wordpress.org/support/topic/new-update-does-not-work-paypal-permanently-deactivated-my-brand-new-account/
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The latest version (2.5.3) doesn’t workhttps://wordpress.org/support/topic/the-latest-version-2-5-3-doesnt-work/
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Changing error messagehttps://wordpress.org/support/topic/changing-error-message-3/
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Payments not working on mobile phoneshttps://wordpress.org/support/topic/payments-not-working-on-mobile-phones/
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Trouble with WP Cerberhttps://wordpress.org/support/topic/trouble-with-wp-cerber/
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Login form on checkout page does not workhttps://wordpress.org/support/topic/login-form-on-checkout-page-does-not-work/
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Payment issue on checkout pagehttps://wordpress.org/support/topic/payment-issue-on-checkout-page/
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Return URL errorhttps://wordpress.org/support/topic/return-url-error-3/
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Sets up ok but on checkout pop up appears then disappears, does not workhttps://wordpress.org/support/topic/sets-up-ok-but-on-checkout-pop-up-appears-then-disappears-does-not-work/
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Upgrading from 2.2.0 to 2.6.0 Paypal button does not appear on product pagehttps://wordpress.org/support/topic/upgrading-from-2-2-0-to-2-6-0-paypal-button-does-not-appear-on-product-page/
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It is not showing payment method when I add custom orderhttps://wordpress.org/support/topic/it-is-not-showing-payment-method-when-i-add-custom-order/
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Pay via paypal Error when an user trying to Payhttps://wordpress.org/support/topic/pay-via-paypal-error-when-an-user-trying-to-pay/
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Paypal not saving the settingshttps://wordpress.org/support/topic/paypal-not-saving-the-settings/
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Paypal plugin is sending ddos like requests to paypalhttps://wordpress.org/support/topic/paypal-plugin-is-sending-ddos-like-requests-to-paypal/
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Infinte Loop loginhttps://wordpress.org/support/topic/infinte-loop-login/
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Unable to update past v1.9.5 – this.paypal is null error with current versionhttps://wordpress.org/support/topic/unable-to-update-past-v1-9-5-this-paypal-is-null-error-with-current-version/
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Can not activate the plugin for my personal PayPal account? When was this updatehttps://wordpress.org/support/topic/can-not-activate-the-plugin-for-my-personal-paypal-account-when-was-this-update/
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Not showing the Error messagehttps://wordpress.org/support/topic/not-showing-the-error-message/
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Select Paypal API certificatehttps://wordpress.org/support/topic/select-paypal-api-certificate/
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Plugin version 3.0.7 – INVALID_PARAMETER_VALUEhttps://wordpress.org/support/topic/plugin-version-3-0-7-invalid_parameter_value/
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Header Overflow Errorhttps://wordpress.org/support/topic/header-overflow-error-2/
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Why so many bad reviews ? Any better plugin ?https://wordpress.org/support/topic/why-so-many-bad-reviews-any-better-plugin/
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PayPalGateway.php:553 errorhttps://wordpress.org/support/topic/paypalgateway-php553-error/
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Payment options doesn’t work unless I active Express Paymenthttps://wordpress.org/support/topic/payment-options-doesnt-work-unless-i-active-express-payment/
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Return URL not correcthttps://wordpress.org/support/topic/return-url-not-correct/
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Bug with Paypal : Authentication with PayPal failed: Could not create token.https://wordpress.org/support/topic/bug-with-paypal-authentication-with-paypal-failed-could-not-create-token/