# Modifying sheet by time-driven trigger - side effects? **URL:** \ **Category:** Ask for Help\ **Created:** [December 29, 2019, 1:19pm UTC](https://community.glideapps.com/t/modifying-sheet-by-time-driven-trigger-side-effects/3192 "2019-12-29T13:19:54Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![mthakershi](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/mthakershi/32/1715_2.png) [@mthakershi](https://community.glideapps.com/u/mthakershi)\ **Post date:** [December 29, 2019, 1:19pm UTC](https://community.glideapps.com/t/modifying-sheet-by-time-driven-trigger-side-effects/3192/1 "2019-12-29T13:19:54Z")
If I need to modify my sheets by automated triggers / time-driven events externally for functionality or maintenance, is it going to affect how glide works with my sheet? Some things I do in my time-driven triggers are: 1. Resetting formulas if something isn’t right 2. Remove empty rows from middle as well as from bottom of the sheets 3. Send out emails and record results 4. Misc payment processing Thanks for helping. ---
**Author:** ![George\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/george_b/32/534_2.png) [@George\_B](https://community.glideapps.com/u/George_B)\ **Post date:** [December 29, 2019, 2:31pm UTC](https://community.glideapps.com/t/modifying-sheet-by-time-driven-trigger-side-effects/3192/2 "2019-12-29T14:31:50Z")
I do all of these things except number 1 in my applications. ---
**Author:** ![Jeff\_Hager](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/jeff_hager/32/43_2.png) [@Jeff\_Hager](https://community.glideapps.com/u/Jeff_Hager)\ **Post date:** [December 29, 2019, 4:07pm UTC](https://community.glideapps.com/t/modifying-sheet-by-time-driven-trigger-side-effects/3192/3 "2019-12-29T16:07:42Z")
As long as the overall structure and layout of the sheet doesn’t change, I would think that you would be fine with what you are doing.