Goods issue wrf to work order (ESM)

Dear All,

External Service Management.

my client had new scenerio.

if a work order is issued for Rs.10,000/- conditon that consumables / any spares required to complete the job should born by contractor.

means : during the work if contractor need "gloves" he should bring the gloves at his cost.

but, the scenerio is

my client is issuing those items with reference to that work order and at the time of billing he is deducting those cost and settling the bill.

kindly advise how to map this please.

Regards,

Adi