FAQSupplier One and third-party app connectionsWhy can't I connect to a third-party app? Common reasons include missing Site Admin access, incorrect channel mapping, or system issues. What is incorrect channel type mapping? The supplier or provider is incorrectly mapped in Walmart's authentication system. Updated 3 months ago Required headers and requestsErrors and status codesDid this page help you?YesNoWhy can't I connect to a third-party app?What is incorrect channel type mapping?