To change/substitute default asset trans. type during settlement

Hi Experts,

I am facing an issue during the internal order settlement to asset. Asset trans. type 116 is used for the settlement by default. My requirement is to change the transaction type based on some condition.

I am able to change the trans. type from 116 to ZXX in FI document via FI substitution rule (GGB0). But related asset document is posted with the default trans. type 116.

I have tried of using asset substitution rule for posting (GGB0) and it doesn't work at all. Also wondering where is this substitution (asset posting) used?

Thanks,

Sukhbold