Customer change for a partial executed project

Dear All,

We are using APPS 11.5.10.2 and Projects FP M RUP 4.

We have a project created for one customer. Partial cost has been interfaced, partial revenue recognised and partial customer billing done.

The customer for the project is now changed and we want to register new customer for that project.

ALl the balance billing will be done on the new customer. There is provision to add new customer. But the billing split % can not be matched exactly to current balance billing to be done. How to handle this situation?

Regards,

Ganesh