How to install

Clone the repo or download Zip file
Open the downloaded folder in VS Code
Authorize an org
Push all metadata to org
You should be able to see an App named "Contact Details Modification Verifier" in your Org
Create connected App as shown in below screenshot

Usage

Creating Duplicate record in clone objects.
Sending Data from Salesforce to external server.
Getting updated records from external salesforce into salesforce org.
Comparing the prrior values and the updated values of the record to approve or reject the changes in the record.