Hello @mdzaman, Licensing in Splunk is very straightforward. It is still a GB per day regardless of reindexing previously deleted data. Example: Your License: 100GB Say for example you're currently indexing a 90GB/day today then you decided to re-index your previously deleted indexed data, the reindexed data will add up to your current 90GB/day license utilization. If you're currently using Splunk Enterprise 6.5 or later, I highly suggest you contact Splunk and request for the "No-enforcement license" to remove your worries on exceeding your current license. See link below for more details on the NEL https://docs.splunk.com/Documentation/Splunk/7.0.0/Admin/TypesofSplunklicenses Hope it helps! Thanks! ... View more