BAPI/FM to update PAN Number in BP tcode for Vendors

Hello Everyone,

We are into S/4 HANA(Version 1511).We are finding it difficulty to update the PAN number for many vendors.How ever i tried it alternatively by updating standard table LFA1-J_1IPANNO using abap code which it worked.Ideally it shouldn't be this way but could not find any standard BAPI/FM.

Regards,

PD