One need to perform below mentioned steps when any requirement of merging two accounts in Modern Bill:
1) Login into the Modern Bill as an Admin
2) Search the client account.
3) Click on Merge Client accounts from Stats/Action section in that client wizard.
4) Logged in account will remain active and select the account which one need to merge with this account.
5) Click on continue.
6) On the next screen it will ask the password details where one need to enter the admin password information.
7) Click on continue to complete the process.