Hi Marcos,
You can solve your issue by downloading ACP ( Attibute Change Package) component for RTLPOSDM 731, you can find it in service.sap.com/swdc -> Installation and Upgrade -> Search for Installations and Upgrades -> RTLPOSDM==100_731, import it using tCOD SAINT, after that you can import the add-on.
I hope to help!!!
Regards,
Mauri