Hi Hannes,
This is more clear now. 
So you are using the LORD framework for ERP Sales order creation from CRM.
There is an assignment block as ERP Sales Order in Account Overview screen where you can get all such sales orders displayed. But this feature is available in 7.0 EHP1. If you are in lower version then 
I guess this feature won't be supported.
The last option we have is get this enhanced. your CRM UI developer might help you on this.
Regards,
Divya