Hello @Shanmuga priya6,
Please refer to the below link's:
https://www.servicenow.com/docs/bundle/xanadu-employee-service-management/page/product/human-resourc...
https://www.servicenow.com/community/servicenow-ai-platform-forum/how-to-add-content-to-the-announce...
If it is helpful, please hit the thumbs up button and accept the correct solution by referring to this solution in the future it will be helpful to them.
Thanks & Regards,
Abbas Shaik
