is ETA case number getting change while applying LCA for relocation

I found my ETA case number in Petition, Intially i got my LCA for Illinois state.,

Now my employer applied for Relocation on OHIO state.

To check my LCA staus in below url…

http://icert.doleta.gov/

While checking with the case number in petition shows as “Certified” but my LCA is not yet issued…

Please confirm me on is Case number changes when we posted for LCA Relocation…??