Dataflow problems

[Syndicate_Admin]

My dataflow will not work and the error code is completely opaque.  Here are my screencaptures.

[Syndicate_Admin]

Figured out that I had some Canadian zip code in the zip field with their combination of letters and numbers.  But now I get this error: ""message":"Error identified in Payload provided by the user for Entity :'cre80_mytestexcels', For more information on this error please follow this help link https://go.microsoft.com/fwlink/?linkid=2195293 ----> InnerException : Microsoft.OData.ODataException: Cannot convert the literal '8774050955' to the expected type 'Edm.Int32'. ---> System.OverflowException: Value was either too large or too small for an Int32.","cdsErrorCode":"0x80048d19","cdsRequestId":"8433218c-301e-482d-8c6f-21d1b85593e7","cdsRequestUtcTime":"7/24/2023 5:03:42 PM"}"