Reserve the Work Order once allocated the move order in EBS

Hi ,

We have created the Discrete job in EBS. once created we have running the concurrent program.

In the concurrent, we are creating the move order and IPR/ISO flow.

Once shipped the ISO, we are going to receive the IPR destination org. while receiving the IPR using MWA we going to allocating the move order then we reserving work order.

now I able to allocating the move order only I can't reserve the work order.

because I don't have reservation qty.

Could you please let me know how to reserve the work order after allocated the move order same qty.