Hello community,
I created a custom entity with 3 fields and with a projection. CONTRACT, SERIES_ID, DESCRIPTION
Then i associated with CompanySiteHandling projection with CONTRACT key.

I added a new tab under Shipment Management section and created a list content. As you can see datasource and binding are completed however the site information is not automatically populated.

When i try to create a record then i get the following error. If I delete the binding then i am getting all records from all sites.

I am missing something but I cannot figure what. Anyone can guide?
Thanks