# SLM cron expression **URL:** \ **Category:** Kibana\ **Tags:** ilm-index-lifecycle-management, slm-snapshot-lifecycle-management\ **Created:** [March 9, 2023, 12:31pm UTC](https://discuss.elastic.co/t/slm-cron-expression/327357 "2023-03-09T12:31:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Gaurav\_kr](https://avatars.discourse-cdn.com/v4/letter/g/c5a1d2/32.png) [@Gaurav\_kr](https://discuss.elastic.co/u/Gaurav_kr)\ **Post date:** [March 9, 2023, 12:31pm UTC](https://discuss.elastic.co/t/slm-cron-expression/327357/1 "2023-03-09T12:31:30Z")
Hi Team, I am using a slm policy and wanted to add the cron expression such that it run on every 26th day. e.g for 1st month jan it run on 26/01/2023 and then run on +26 days that is 21/02/2023 and so on. Can someone please suggest how I can add this expression? Thank you. ---
**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\ **Post date:** [March 10, 2023, 12:55pm UTC](https://discuss.elastic.co/t/slm-cron-expression/327357/2 "2023-03-10T12:55:36Z")
> [@Gaurav\_kr](#): > > Can someone please suggest how I can add this expression? This is not possible. You may be able to use a cron expression that will run every `26th`, but it will be on the `26th` in that month, not 26 days after the last run, so it will run on 26th of January, 26th of February, 26th of March etc ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 7, 2023, 12:56pm UTC](https://discuss.elastic.co/t/slm-cron-expression/327357/3 "2023-04-07T12:56:13Z")
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