Datamart between master data of same system

Hi,

I have a question regarding datamart. My scenario is I need to update an infoobject, 0abc from one master data (e.g. 0product) to another master data of the same infoobject(e.g. 0material). Both of the master data infoobjects were check for 'Characteristic is export data source'. I have tried the datamart via update rules but the options does not allow this.

Any other ideas of resolving this issue?

Thanks in advance.

Regards,

Lye