Customer order or Customer Reference link into RA interface TAble

Hi,

Request a quick advise to fix the below requirement.

We are importing the sales invoices from our sub system and inserting to RA_interface_lines table. For sales return our program insert the credit memo into RA interface table. There is a customer delivery note number that we have to insert into Ra interface table in such a way that it can be link to Ra_Customer_Trx_All.CUSTOMER_REFERENCE field.

Please guide me in which field of ra_interface_lines or distribution or salescredit table I have to pass the customer delivery number.

 

Thanks in anticipation.