Hello, The merchant id provided "JZYWDW7KBSGMN" doesn't belong to a sandbox business account. Please login to the sandbox business account in which you want sFTP reporting enabled and check the "account settings" > "business information" section. You should see the merchant id for the sandbox account displayed there. Share the merchant id for the sandbox account and we can enable sFTP reporting and subscribe the account to the dispute report. Thanks !
... View more