MB5T - Intra Company Stock Transport Orders AFS

Hello.

Currently we using Intra Company Stock Transport Orders to move goods from plant to plant.  We using movement types (641/101) to move the goods.

However, the BW team is reporting difficulties reporting SIT (Stock In Transit) at the AFS batch/size level because both the MSEG-CHARG and MSEG-J_3ASIZE fields are blank in the auto generated 641 movement.

BW team is asking whether through ABAP enhancements the MSEG-CHARG and MSEG-J_3ASIZE field can be updated with the receiving batches/sizes.

My questions are:

Is updating MSEG-CHARG and MSEG-J_3ASIZE a valid request?

Or perhaps updating the extract structure for the following fields is a better approach:

MSEG-UMCHA  (receiving batch)

MSEG-J_3AUMSI (receiving size)