Automatic external Batch Creation at GR

Hi,

I have some finished goods.

1st type- automatic external batch number will be created during order release.

2nd Type- Automatic external batch number during GR (using MIGO).

For

1st type- Batch Creation at order release (activated at production scheduling profile) and use the user Exit -  EXIT_SAPLV01Z_003; working on this

2nd Type - No batch creation at order release or creation, then?

Please provide some solution for 2nd type.

thanks

Krish