Adding standard CDS view as Value Help for Custom Business Object fields

Hi ,

Referring to blog Adding a Value Help for Custom Business Object fields | SAP Blogs

1. created custom business object and checkmarked Can Be Associated
2. created custom CDS view of scenario value help with custom business object as primary data source .
3. Added standard CDS view as associated data source .

we are not able to see any data in CDS preview . could you please help.

Thanks,

Phani