MDG workflow:WS60800086 does not have any decision text in fiori inbox app

Dear Friends,

We now want to use Fiori inbox app to approve the MDG CR which base on the workflow: WS60800086, we are using BP ,Material and many custom data model all base on this workflow. And now we can approve this in inbox app, but there are no decision text in inbox, so we want the decision text can be customized base on different data model, such as when this CR is approve BP, it can show some BP info, when approve the custom data model, it can show some other information. Is there any friends come across this issue, please help us with this.Thanks!

B.R

Kevin