# Perspective Scripting to find a Custom Property on a View **URL:** \ **Category:** Ignition\ **Tags:** perspective, scripting\ **Created:** [September 21, 2023, 5:20pm UTC](https://forum.inductiveautomation.com/t/perspective-scripting-to-find-a-custom-property-on-a-view/79466 "2023-09-21T17:20:58Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [September 21, 2023, 5:46pm UTC](https://forum.inductiveautomation.com/t/perspective-scripting-to-find-a-custom-property-on-a-view/79466/2 "2023-09-21T17:46:33Z")
I think `system.tag.write` has been depreciated (and it's "system", not "System"). You should be using [system.tag.writeAsync](https://docs.inductiveautomation.com/display/DOC81/system.tag.writeAsync) or [system.tag.writeBlocking](https://docs.inductiveautomation.com/display/DOC81/system.tag.writeBlocking). Note they expect the tags in list format - even when only one tag is sought (but I think it will tolerate one tag without the `[]`. Can you right-click on `custom.UDT`, copy and paste it in here so we can check the contents? Tip: see this before you post: > [@Wiki - how to post code on this forum](https://forum.inductiveautomation.com/t/wiki-how-to-post-code-on-this-forum/77831): > > This thread is intended as a short help file for all those struggling to post formatted code on the forum. Posting formatted code on the forum (and most others) is as simple as selecting the code and pressing the \ button. It works the same as applying Bold or Italic styles to your document. It preserves indentation and applies syntax highlighting. [How to post code] --- _[View the full topic](https://forum.inductiveautomation.com/t/perspective-scripting-to-find-a-custom-property-on-a-view/79466)._