Types Declarations

Hi all,

What is the exact syntactical declaration for the types with Include structure ?

I have the below existing types as

TYPES: BEGIN OF exceplist_inv.

INCLUDE STRUCTURE erdod.

TYPES: END OF exceplist_inv

I need to add a new field to this TYPE, the field being username like CDHDR-USERNAME.

The below change to the declaration gives error.

TYPES: BEGIN OF exceplist_inv.

INCLUDE STRUCTURE erdod,

username like CDHDR-USERNAME,

TYPES: END OF exceplist_inv

Moreover I have tried placing the commas and the fullstops at many places but the syntax error still appears.

Need help for the exact syntax for the above.

Regards,

Stock