Stock in Transit in MD48

Dear All,

We have copied the Transaction MD48 to a customized T.code to consider for a specific plant and storage location.

1. We are creating the STO

2. Create the delivery and post the goods issue ,here when we check the Z T.code(Copy of MD48) The field warehouse stock is getting updated As soon as we post the goods issue.

The actual requirement is The stock needs to be updated in the Warehouse stock field once we post the GR.

Please let me know if any configuration changes are missing or is it a standard behaviour..?

Regards,
Gopinath