Name length of 'Attribute' is incorrect. Name length: '887'. Minimum allowed length: '1'.

[aliciatapia]

Dataflow validation results

There was a problem saving the dataflow. The mashup could not be converted to a valid Cdm Model. Please fix the problem and try again.

Error Code: 101200

Session Id: 4632d3d9-0875-4bea-8e0b-5a049c78fa1f

Request Id: 1d8d172d-551a-43cb-9f23-8e21429a78a2

Details:Name length of 'Attribute' is incorrect. Name length: '887'. Minimum allowed length: '1'. Maximum allowed length: '256'

[v-chuncz-msft]

@aliciatapia 

This can be caused by the length of column name is too long.