Creating Relationships

Hi Experts,

I am just learning SAP now, i able to create Positions,Organizational units, jobs, employee groups and sub groups, personnel areas and sub area and Relationships.

I created Employee Group and Subgroups, but when am making relationships showing error as "Entry 2 Y7 doesn't exist in T503 check your entry". I checked for the table but I didn't find it.

please reply me with IMG Path(SPRO)

regards

gosammy