FEIN on Customer Account Statement - External

Will someone share with me how to populate the FEIN value on the AR Customer Account Statement - External?

Menu path to the report in AX 2012 R2 is: Accounts Receivable > Reports > External > Customer account statement.

FEIN is an acronym for US Federal Employer Identification Number.

I've tried adding values to the Legal Entity for each of these but nothing has populated the value on the report:

• Tax 1099 > Federal tax ID
• Tax registration > Tax registration number

Thanks.  Grateful.  Thanks.