How can I find out which ACL is blocking users and how can I fix it?

[Wendy20]

Hello experts,

I am new to SNow and still learning. I am working on a task to provide appropriate roles to ITSM process managers and I'm having some issues with change management module.  User should have access to do list edit on schedules. seems like an ACL is blocking this.  I would like to know How can I find out which ACL is blocking users and how can I fix it? Thank you in advance!

Wendy

[crizler]

Our case might be different with the main post. 
However, this information reroutes us to correct ACL record to provide the access to users.

Summary: 

I've checking, updating, testing a wrong ACL record. Even we're apply changes to the Parent table, it still doesn't provide access that we need. 

Using this Access Analyzer gives visibility and reroute us to the record that blocked, skipped, passed the ACLs.