SP 10.5.0

1)Login as Suite Admin
2)Click on Project Pillar menu under setup tab
3)Click on Add button
4)Click on Save button
5)Pillar required alert prompts
6)Enter the pillar name
7)Click on Save
8)Saved Successfully alert prompts
9)Observe the pillar required alert

Note :Alert needs to be closed automatically when the data gets save or if any message is prompted.No need of one more click to close that