Controlling Sales to Blocked Customer in SAP ECC

Hi SAP SD Experts,

In SAP (ECC), we person 1 lawsuit (SH) with 2 antithetic SAP numbers and are selling to them from 2 antithetic entities. The occupation is that I person blocked 1 lawsuit fig successful entity one, but the different entity is inactive selling to the aforesaid customer, adjacent though they are blocked, owed to the antithetic SAP number. How tin I power this scenario?

Say - A -Customer 

Company codification -TR10-(Customer fig is 0001 For lawsuit A)

Company code-PL10 (Customer fig is 0002 For lawsuit A)

If blocked lawsuit A(001) successful CC TR10, strategy allowed maine to merchantability to lawsuit 0002 from CC PL10 owed to antithetic SAP number.

And not imaginable to widen the lawsuit from TR10 TO PL10 Receiving mistake below