How to process Customer Open Items? If that Customer is also an Vendor.

Hi All,

I need some help for the below configuations,

1. How to process Customer Open Items? If that Customer is also an Vendor to the Company. ( How to adjust these open amounts)

1. How to process Vendor Open Items? If that Vendor is also an Customer to the Company. ( How to adjust these open amounts)

Thanks

Chandra