Add emailadress to PO in ABAP.

Question

Hi,
If I update vendor address through PO (ME22N), it will update table ADR6 (and all the other ADR* talbes) and add a new address number to the data in EKKO. so the connection changes from EKKO-LiFNR --> LFA1-LIFNR/ADRNR --> ADR6-ADRESSNUMBER  to EKKO-ADRNR --> ADR6-ADRESSNUMBER.
My question: how can I do this in a abap. is there a bapi or function module to do this. I have to add a emailadress to the PO in my abap. and as far as I understood it I have to do it this way....
Otherwise I have to do everything manually (getting a new adress, reading the vendor adress + details, copy the adress, set the new adressnumber in the EKKO,  change the emailadress and update it in adr6..... ) this sounds pretty dangerous and faulty to me.
any help will be appriciaed.
thanks & regards, Alex

Answer 1

Dear Raymond,
I tried that already. the problem is, that the purchase order doesn't have its own adress number (since the vendor adress details are taken when the purchase order is created and no data is changed. onyl if data gets changed the system is creating a new adress object and sets the adressnumber of the PO to the new adress object).
when i use the function module BAPI_ADDRESSORG_CHANGE I get the error, that the adressobject cannot be found. thats whey I wanted to create a new adress for the purchase order.....
Is there a way to create a new adress object and link to the PO, then i could use the BAPI_ADDRESSORG_CHANGE for my purpose....
regards, Alex