# Need help with expression involving dropdown selection & repeating group output **URL:** \ **Category:** Need help\ **Created:** [October 9, 2020, 4:31pm UTC](https://forum.bubble.io/t/need-help-with-expression-involving-dropdown-selection-repeating-group-output/115481 "2020-10-09T16:31:23Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![tom.love1250](https://avatars.discourse-cdn.com/v4/letter/t/958977/32.png) [@tom.love1250](https://forum.bubble.io/u/tom.love1250)\ **Post date:** [October 9, 2020, 4:31pm UTC](https://forum.bubble.io/t/need-help-with-expression-involving-dropdown-selection-repeating-group-output/115481/1 "2020-10-09T16:31:24Z")
Hello, I am new to Bubble and trying to build my first app. I’m having trouble trying build an expression that pulls the correct data into a RG based on a selection the user makes in a dropdown list. Here’s a pic that illustrates what I’m trying to accomplish and a link to the app. ![table](https://us1.discourse-cdn.com/bubble/original/3X/3/2/322a4b1b44ed51410d246b3dd6442ad4d75cdec2.jpeg) [https://bubble.io/page?type=page&name=whiteboard&id=instruction2&tab=tabs-1](https://bubble.io/page?type=page&name=whiteboard&id=instruction2&tab=tabs-1) ---
**Author:** ![nickinbold](https://avatars.discourse-cdn.com/v4/letter/n/d2c977/32.png) [@nickinbold](https://forum.bubble.io/u/nickinbold)\ **Post date:** [October 11, 2020, 12:20am UTC](https://forum.bubble.io/t/need-help-with-expression-involving-dropdown-selection-repeating-group-output/115481/2 "2020-10-11T00:20:05Z")
what does it need to change to? ---
**Author:** ![system](https://us1.discourse-cdn.com/bubble/original/3X/2/8/2847faa74692c2ffa5d939d3dc3724cdd060d247.png) [@system](https://forum.bubble.io/u/system)\ **Post date:** [December 18, 2020, 4:31pm UTC](https://forum.bubble.io/t/need-help-with-expression-involving-dropdown-selection-repeating-group-output/115481/3 "2020-12-18T16:31:28Z")
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