sourceExternalUserId
or destinationExternalUserId
must be provided to identify the user involved.lockId
from the previous step with Create and Finalize an Exchange.exchangeId
received in the response.withdrawalId
received in the response.transferId
received in the response.destinationExternalUserId
is provided → funds move from the partner to the user.sourceExternalUserId
is provided → funds move from the user to the partner.transferId
. Use Get Transfer Details to track final status and handle possible errors.