Scope
How to search customers using phone numbers?
How to search customers using email ID?
Summary
This can be done by using the filter option on the Customer and Subscription page.
Go to customer page in Chargebee app -> Click on 'Choose Attribute' -> Select 'Email' or 'Phone' based on the type of search results you want -> Select the word 'Contains' or 'equals' -> Enter the email or phone number to be searched. The respective results will be displayed.