Access one tenant from another one within c/al

Hi, we have a multi tenant environment. is there a way to acces tenant B data from tenant A within c/side, like accesing another companies with CHANGECOMPANY

No, as far as I know

maybe with webservices ? i found this and this , the second link would be perfect, but fortunately it doesnt work with codeunits, and i dont know what i need to modify for it to work with codeunits

in the first link i created salesorder.dll but have no option PortClient and i dont now how to make it work