57 F4 Challen not fully reconcilled

HI,

we have subcontracting raw material , we send this raw material in Kg to subcontractor. After processing on material , subcontractor supplies material in EA qty alongwith end pieces remaining at its end.

During GRN , system posts GRN as per the conversion factor mention in material master . System partailly reconcilled the challen, therefore some qty of raw material pending at subcontractor.

Also in excise register shows the challen partailly reconcilled.

How the challen could be fulle reconcilled?

Regards,

Deven