Apparently the PayPal transaction ID is supposed to be just the TransactionId. However what I see is something like
"TransactionId": "EC-3PJ21959GE64...",
Meanwhile in PayPal this does not line up with the test transaction ID, none of the related IDs show up when checking the JSON of the player_realmoney_purchase.
If I search the EC-3PJ21959GE64... it does not show up in PayPal Activity search either, is there another way to read this value? Where is it coming from? We need a reliable way to link PayPal transactions with game events.