Hi @Balakrishna sadineni​ 

Error 2502 and 2503

This is a Microsoft Windows Installer error message (MSI is part of Windows OS) which just happens to get picked up during installation of a Windows-based software, in this case Automation Anywhere Bot Agent.

The most likely causes for Windows to display this Windows message are:

1. When the system date on your computer is set incorrectly.
2. Windows User write permission issues: Windows has denied your Login User name access to certain Windows Installation folders and permission to perform certain tasks on the computer.

For resolution, kindly review below KB Article.

https://apeople.automationanywhere.com/s/article/A2019-Unable-to-install-Automation-Anywhere-Bot-Agent/p>