Problem in creating Object dependency in BOM

Hi Gurus,

Want to use Varaint configuration with object dependency for selection of correct component based on characteristic values.

We have a Characteristic "ENGINE" with 2 values 100 and 200.

Trying to create a Selection Condition for the component in BOM, by accessing Extras -> Object Dependency -> Editor.

We have created OD as : ENGINE = '100'

System is giving error as

E28063 Reference to object $ROOT, $PARENT or $SELF required

E28023 Error in syntax check for simple condition

and if you select details of error it throws the following error..

E28063 Reference to object $ROOT, $PARENT or $SELF required

E28051 Reference to characteristic required

E28075 Character string required in inverted commas

E28050 Characteristic is multiple value ENGINE

E28091 Error in standard dependency: TYPE_OF

E28037 Logical expression required

E28023 Error in syntax check for simple condition

Please help us how to create this simple OD.

Many thanks for your help.

jaideep