Customer specific field table T77OMATTR

Hi guys.

SRM 4.0, server 5.0.

I have added an attribute to use in the PPOMA. My attribute is for the tax jurisdiction code, besides this extra attribute I have added a customer specific field to the SC. But which function modules should I use to fill the customer field with my attribute, any ideas? I would believe that everytime you enter a new attribute in the table, you would also have to do some coding before it can work, right?

Thanks

Dennis M