Hi Gaurav surana,
The financial Impact is same for production order or process order, I am very much familiar with production order so explaining the course of action at production order for rework.
Create an operation in routing for rework by selecting the control key relevant for rework, and confirm the rework operation... by giving materials and activities to the selected operation. the cost related to the unexpected rework order will be posted as variance for materials as Input Resource usage variance and for activities as Input Qty variance. and settled to PRD account while settling the variances. no change to standard cost estimate. working with Production or process order doesn't change the Std cost estimate.
and there are other options are also available for rework of production order.... please find the below link.
Rework in Cost Object Controlling - Cost Object Controlling (CO-PC-OBJ) - SAP Library
For Material ledger - For raw materials consumption ML document will be posted as consumption to Production order and For Finished Goods as Receipt against production order/material. we need to run revaluate consumption , WIP revaluation and Post closing to update the variances to FG and need to execute mark material prices for revaluation of Std cost by considering variances, if you want to consider the new periodic unit price created by actual costing as Standard price for your FG.
Thanks and Regards,
Surendra kumar kotha FICO.