Hi,
You can use standard internal order type i.e.
| Q100 | - | ternal Order - DBM Order |
This Order type is attached to DBM order type. So when you create DBM order with this order type header internal order will be created of this Internal Order Type.
2. Do the configuration for RA key . Configure the line ID and chose the cost elements you want to post in RA.
3. Run the RA with standard procedure for order type Q100 as month end activity
Regards,
Ganesh