Unable to adjust vendor debit notes against standard Invoices across the Operating Units.

We have 4 Operating units for one vendor.Here same vendor supplying the goods different locations.we are using based on location different Operating unit.

Ex:-OU-A Having 100 Standard Invoices total value is RS:-15000/-

      OU-B having  50 Standard Invoices total value is RS:-10000/-

      OU-C having 20 Standard Invoices total value is  RS:-5000/-

      OU-D having 150 Debit Notes total value is RS:-30,000/-

Now we don't want pay against the standard invoices.We want adjust the debit notes against standard invoices.

Kindly suggest to us.

Thank you,

Kind regards,

Cristina