How to modify field in badi not changing parameter

[shkim]

I develop in the s/4hana public cloud.

i use badi "MM_PUR_S4_PO_MODIFY_ITEM"

i want to change value field is not exists in changing parameter.

so how to add changing parameter ??

thank you

[OwenLiu]

Changed tag to Procure.

[Zhehui_Xia28]

Hi Kim,

As Dennis said, you cannot add more standard fields. But you can add some custom fields which you can change them in this BAdI.

Best Regards,

Zhehui

[shkim]

i want to know that how to add field in custom BAdI?

do you have any manual?

thank you !!