Missing Dataverse field in Dual Write

Lets say you have created a custom entity or for any reason, a Data verse field from CE is not searchable or missing in DW mapping.

In order to fix this small issue, you need to go to integration keys :

Find your Entity from where you are missing the field you need and add it in the Integrational Keys :

Don't forget to hit the Save button after this.

You can go back to your table mapping, hit the refresh table button and voila, the field will be there present.

As you can see, for me was the last field on the photo.

Hope i could save somebody some time with this tip.