Each table in SQL Server has a simple name [MY_TABLE] and full name [MY_DB_NAME].[MY_SCHEMA].[MY_TABLE]
In the delphix connector form you have to fill some information, and in particular:
Database Name: [MY_DB_NAME]
Schema Name: [MY_SCHEMA]
Usually all tables are created into the default schema with the name [dbo].
If you can query your table:
select count(*) from [dbo].[MY_TABLE];
then the MY_TABLE is created under the [dbo] schema and you have to fill the Schema Name with the dbo string.