joslohan Posted July 7, 2009 Share Posted July 7, 2009 hi, i have configured paypal sandbox account and admin paypal module as instructed in the tutorial found on this forum. everything seems fine only when i try to make a payment as a buyer i get this error: This invoice has already been paid. For more information, please contact the merchant. (Button) Return to merchant i looked through some of the other forums and it mentioned changing details in Paypal website payment settings to alowing multiple transaction ids for a single payment, i set this to allowed but i am still etting the same error. cld some one pls point me to right dir? best regards Link to comment Share on other sites More sharing options...
joslohan Posted July 7, 2009 Author Share Posted July 7, 2009 okay i have overcome this problem by myself as well, the solution was to use the sandbox business id and not the registration id for sandbox. order went through however, even though payment went through but order status was not updated to delivered. if anyone could help me with this, it'd be gr8 Link to comment Share on other sites More sharing options...
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