Muhammad Faisal Khan

You do not have need admin rights, but ask domain admin to give full rights on "system management container" uder system foloder in AD to SCCM Site Servers. local admin rights on each domain system to push clients. Ask him all subnet added in AD site, healthy DNS server, WMI access on each machine from SCCM server to client, RPC port and other ports should be open in firewal level, you can find details at MS site.

Please check by taking system property in SCCM Console, is it showing data discovery property value of OU? if not then need to trouble shoot why all proerities data is not populating against the resource.