Info-Object Master Data is not populated using Attribute View

Hi Colleagues,

I have one info-Object 'Resource', compounded with client, resource type and scenario.

I want to fill its master data using an attribute view.  In Master data tab, i have mentioned the package and attibute view (SAP HANA MODEL).

Assigned all the attributes to respective fields in attribute view.

I can see data using the 'Data Preview' in my attribute view.

Two issues --

1. Maintain master data option is disabled in the context menu of 'Resource' Info-Object.

2. Also the data available in attribute view is not populating in master data of info-Object ( I tried seeing by creating a report).

Please suggest what is wrong here.

Thanks in advance.

Regards,

Rohit