We just started experiencing this error as well. We had the PayPal Here app installed in several different phones to be used at a tradeshow for sales at our booth. Prior to this the sales report would generate just fine. I just got off the phone with PayPal support. They had me reinstall the app and try a couple different things, but the error is still there. They are going to escalate the issue to the developers of the app. What would really be nice is a way to generate a PayPal Here specific transaction report from the backend of PayPal (when you log in to your account through a web browser). You can add product and add product options from the backend, but it does not have a way to list sales specific to PayPal Here transactions.
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