I am trying to upload few IOCs in to IOC tracker via the excel sheet. But i don't see the buttons(based on origin/campaign) listed in the tracker app. Is there anything that i am missing?

are you missing the upload buttons or the buttons to select/deselect a campaign?

To upload/delete IoCs using IoC Tracker your username needs to be on the editor list in the configuration menu of IoC Tracker.

The campaign buttons appear based on grouping of IoCs on origin/campaign. Are there are no IoCs in IoC Tracker, there are also no buttons. If origin column is left empty, the campaign should be called "-"

Does this help you?