lookup values not updated in data manager...

Hello,

I'm new to mdm.I'm using mdm 7.1.I have two main tables out of which one has a lookup main field that references into the other main table.But when i try to add a record into the main table, the lookup field does not show any values.I have selected the proper display display fields in the other main table.

Any help would be highly appreciated.

Regards,

Rithesh