I configured a Data Extract (Data Extension Extract) and a File Transfer (Safe House to External FTP which is also an SFMC FTP ). Unfortunately, File Transfer fails without giving a proper error.
ERROR: An undefined error occurred. Contact your account representative if the error persists.
Salesforce Support is asking me to whitelist Stack 1 IP Address on my Internal Network when the operation is done within SFMC Servers. I have ask them to escalate this to Tier 2 support.
Have you come across this issue in the past? What have you done to resolve this issue?