Hi @Changal ,
Could you please share more details about your scenario? Would you like to display approvals details in Canvas App?
If so, you can add below tables as data sources in your app:
Now, you can use a specific GUID of a request or approval to get the approval in Lookup column of Approval Request table or Approval column in Approval table.
Community Support Team _ Jeffer Ni
If this post helps, then please consider Accept it as the solution to help the other members find it.