How to change customer's Tax Number Type and customer's Tax Type?

Hello everyone.

The transactionsXD02orFD02doesn't display inthe screen the fields: Tax Number Type and Tax Type . AlthoughXD01andFD01 if  display on screenthese two fields.I was reviewingthe customizing and I don't found an option for this.

How to changethe fields Tax Number Type and Tax Type forcustomers?.

I was readingand Ifound that can usetheBAPI: BAPI_CUSTOMER_CHANGEFROMDATA1.

I do not knowhowto use thisBAPI(from whereto call it). Someonehas anidea?.Orthere will beanotherway that allowsupdate thesetwo fields inthe customer masterdata?

I appreciate any help.Thanks