Forum Discussion
NandanHegde
2 years agoSuper User
Read data from Dataverse table via Fabric Dataflow gen 2
Hello All, Good day! I am trying to read data from dataverse tables through Farbic dataflow : https://learn.microsoft.com/en-us/fabric/data-factory/connector-dataverse But getting timeout e...
- 2 years ago
Looks like this is the same issue as
Gen2 Dataflow load to Lakehouse error - Can't inse... - Microsoft Fabric Community
"
Exception:ExceptionType: Microsoft.Mashup.Engine1.Runtime.ValueException, Microsoft.MashupEngine, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35Message: We can't insert null data into a non-nullable column."i.e., your source\destination target has nulls but the columns are non-nullable.You can mark your source table's columns to nullable to fix this for now. We are working on several changes here that will address the issue - such as defaulting to nullable, and surfacing nullability better in the mapping screen.
pqian_MSFT
2 years agoMicrosoft Employee
BTW, this is clickable to drill into details
pqian_MSFT
2 years agoMicrosoft Employee
Looks like this is the same issue as
Gen2 Dataflow load to Lakehouse error - Can't inse... - Microsoft Fabric Community
"
Exception:
ExceptionType: Microsoft.Mashup.Engine1.Runtime.ValueException, Microsoft.MashupEngine, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Message: We can't insert null data into a non-nullable column."
i.e., your source\destination target has nulls but the columns are non-nullable.
You can mark your source table's columns to nullable to fix this for now. We are working on several changes here that will address the issue - such as defaulting to nullable, and surfacing nullability better in the mapping screen.