Hi Anoop.KV,
Thanks for visiting our forum. Then sorry but here we mainly focus on general issues about Office desktop client. Considering that your issue is more related to developing add-in in Outlook, it is suggested to post a new thread to the dedicated MSDN forum
for Outlook.
https://social.msdn.microsoft.com/Forums/en-US/home?forum=outlookdev
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.
Regards,
Yuki Sun
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