Hey @Nithya_01!
Relatively simple fix to this, assuming you’ve got the error I think you’ve got 
You’re currently trying to do the following property sync to keep some properties all matching each other:
Object A --> Object B
Object B --> Object C
In this way, if we rename them to Contact (A), Company (B) and Deal (C) you’re trying to show some data that your people are logging on your Contact Record, on both the Company and the Deal.
The issue is that B --> C is not working. So let’s switch it up to:
Object A --> Object B
Object B --> Object C
Object A --> Object C
Same result - you get the data from Object A within Object C. And it should solve the error.
Please let me know if you’re getting a different error message!