topic Re: Dataflow gen2 to lakehouse table type error in Dataflow

Dataflow gen2 to lakehouse table type error

jcaubin — Sat, 23 Sep 2023 17:21:58 GMT

A dataflow gen 2, last step, conver column type to date.

Dataflow run ends with error cant insert dateTime into date

Last df step:

#"Tipo de columna cambiado" = Table.TransformColumnTypes(#"Remove Columns", {{"FEC_MATRICULA", type date}, {"FEC_TRAMITACION", type date}, {"FEC_TRAMITE", type date}, {"FEC_PRIM_MATRICULACION", type date}, {"FEC_PROCESO", type date}})

Dataflow run error:

Mashup Exception Data Format Error Couldn't refresh the entity because of an issue with the mashup document MashupException.Error: DataFormat.Error: We can't insert values of type 'DateTime' into column 'FEC_MATRICULA' because it expects values of type 'Date'. Details:

Re: Dataflow gen2 to lakehouse table type error

Anonymous — Mon, 25 Sep 2023 11:37:27 GMT

Hi jcaubin ,

I have tried to reproduce the scenario. Uploaded a sample excel file in Lakehouse using Data Flow Gen2.

Input Excel Sheet:

Data Flow Gen2 ( modified_date_1: DateTime to Date, modified_date_time_2: DateTime to DateTime)

DataFlow Gen2 Executed without any errors -
In SQL Endpoint:

In Notebook:

For helping you better can you please send the screenshots of how you are trying to work with DataFlow Gen2 and the steps which you followed.
Hope this helps. Do lets us know if you have any further queries.

Re: Dataflow gen2 to lakehouse table type error

Anonymous — Tue, 26 Sep 2023 12:07:27 GMT

Re: Dataflow gen2 to lakehouse table type error

Anonymous — Wed, 27 Sep 2023 12:20:43 GMT

Hello jcaubin ,
We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet .
In case if you have any resolution please do share that same with the community as it can be helpful to others .
If you have any question relating to the current thread, please do let us know and we will try out best to help you.
In case if you have any other question on a different issue, we request you to open a new thread .

Re: Dataflow gen2 to lakehouse table type error

jcaubin — Wed, 27 Sep 2023 13:51:53 GMT

Sorry. As soon as I can prep a simple test case i will post it.

Re: Dataflow gen2 to lakehouse table type error

Shikha_Solanki — Thu, 07 Aug 2025 09:30:56 GMT

I have same issue please help to resolve the issue
Datatype is same in both place lakehouse Table and Gen2 data flow
We can't insert values of type 'DateTime' into column 'Date' because it expects values of type 'Date

what should i do in that case