We think to upgrade CREO version from 5.0.4.0 to 7.0.0.0.
Please confirm CREO version 7.0 is compatible with our existing windchill 11.0
While it may work, it is NOT supported. Sorry.
https://www.ptc.com/en/support/refdoc/creo_view/5.1/creowindchillcompatiblityroadmap
Creo 7 introduces multi-body part files and that has required changes to Windchill to support them.
I am in the process of upgrading Windchill to 11.1 m020 cps14 just for that reason.