BADI_SD_V46H0001 - Change header partner in DP90

Hello,

in our service order we have a partner role for "Employee responsible". We have the same partner role in our billing request created with DP90. But the partner number should not be same. Is it possible to exchange the partner number for this partner role somehow in DP90? I saw that BADI_SD_V46H0001 allows this but only for item partners and not for header partners.

Is there any idea or solution for this requirement?

Thank you.

Kind regards

Manfred