002705: Cannot add field <value> as Non-Nullable to a NON-EMPTY Geodatabase table.

Description

When adding a field to a geodatabase table, the field cannot be created as nonnullable (with the Field IsNullable parameter set to false) if the table contains data.

Reference the tool documentation for more details.

Solution

When adding a field to a table, the Field IsNullable parameter must be set to true for tables that contain populated rows.