Tanushree Maiti
Tera Patron

Tuesday

Hi @Balakrishna_ABK 

 

Refer: Customize the Virtual Agent Service Portal icon (Agent chat configuration)

 

You have to update  Portal Theme's Css image link.

 

Please Accept the solution if it assisted you with your question & Mark this response as Helpful.
Regards
Tanushree Maiti
ServiceNow Technical Architect
LinkedIn: https://www.linkedin.com/in/tanushreemaiti
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