Hi everybody,
I have dived on all the PayPal developer documentation but could not find the way to implement my use case. I'm trying to integrate with PayPal on my platform by allowing my customers to link theirs PayPal account and periodically downloads their transactions. I've found the documentation for the "Transaction Search API Integration Guide" (https://developer.paypal.com/docs/integration/direct/transaction-search/) which I think is the good one for me but I don't know how do my customers link my platform with their PayPal account. I could not find any documentation of the required authentication and authorization flow.
