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You'll get this error if you change your email address with PayPal after adding PayPal as a payment method. You shouldn't change your email address with PayPal after adding PayPal as a payment method for your store.
If you change your email address with PayPal, customers using PayPal as a payment method won't be able to complete their transaction using PayPal, and will get an error stating Unable to communicate with payment processor. Please try completing this transaction later. Customers who encounter this message may complete their order using a different payment method.
If you changed your email address with PayPal, you can resolve this error by changing your email address with PayPal back to the email address used when PayPal was added as a payment method for your store.
If you don't want to use your previous email address, you can instead remove and re-add PayPal as a payment method:
If you continue to experience this problem after removing and re-adding PayPal as a payment method, please contact Customer Support.
No. If you've changed your email address with PayPal and are experiencing this issue, only customers who choose PayPal as a payment method will get this error. Customers can complete their order using a different payment method.
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