# Writing to a client tag in start up client launch **URL:** \ **Category:** Ignition\ **Created:** [April 19, 2020, 7:43pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041 "2020-04-19T19:43:53Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![jespinmartin1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jespinmartin1/32/57175_2.png) [@jespinmartin1](https://forum.inductiveautomation.com/u/jespinmartin1)\ **Post date:** [April 19, 2020, 7:43pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/1 "2020-04-19T19:43:53Z")
If I write a value to a tag in any tag provider in start up client it works. If I try to write a value to a vision client tag in client start up event script it doesn’t work. What confuse me is that I’m able to read a client tag from start up client but not write. Why? I’m using system.tag.write() ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 19, 2020, 9:03pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/2 "2020-04-19T21:03:08Z")
Not sure your not. I have many applications that write to client tags in the client startup event. Are you trying to write to a client tag that has a query or expression? If so, those bindings will overwrite what you do in the client startup event. ---
**Author:** ![jespinmartin1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jespinmartin1/32/57175_2.png) [@jespinmartin1](https://forum.inductiveautomation.com/u/jespinmartin1)\ **Post date:** [April 19, 2020, 9:07pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/3 "2020-04-19T21:07:12Z")
Hi @pturmel and no really, is a just a memory tag not expression nor query on this tag. Can you please tell me which system function you are using to write? I mean write(), writeBlocking() or writeAsync()? I’m able to write to this client tag with the same code but only works in runtime. Maybe the scope of client start up is not runtime yet or something? ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 19, 2020, 11:22pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/4 "2020-04-19T23:22:15Z")
The designer doesn’t run client startup/shutdown events. ---
**Author:** ![jespinmartin1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jespinmartin1/32/57175_2.png) [@jespinmartin1](https://forum.inductiveautomation.com/u/jespinmartin1)\ **Post date:** [April 20, 2020, 2:50pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/5 "2020-04-20T14:50:59Z")
I tried running the script actually launching the client ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 20, 2020, 3:55pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/6 "2020-04-20T15:55:32Z")
You’ll have to share your script. I don’t have enough info to help further. ---
**Author:** ![jespinmartin1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jespinmartin1/32/57175_2.png) [@jespinmartin1](https://forum.inductiveautomation.com/u/jespinmartin1)\ **Post date:** [April 21, 2020, 11:00pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/7 "2020-04-21T23:00:29Z")
Thanks for offering help, since writing to client tag didn’t work for me I found a better and elegant solution. But anyway I may want to know what I’m doing wrong ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/4/48dc7cc6adfb39e1a101d20aa478329516077eb0.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/e87cc863d25eee1ab431960238a0c6c510333db1.png) ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/c/c5f1ad1d65491017444f21454a3962047f9ed65c.png) So this is the tag ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/6/60b7b74a1efb743f653e47d050fb6b7986537659.png) Anyway this is my code, as simple as this and I want to turn false de given tag… ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/edb14887d67efc5b44e11d15d5daef6c2f50aa35.png) projects saved… Lauching same client of couse… ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/f/f26b45b88361c99b3b9239c3b67c7d404558dcfc.png) Successful log in ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/d/d02595ba1b363023d6c175b217c9be65e385e96d.png) At this point, the script should have run… ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/3/3ad009ef952f9aabd9427ea7d0bb4cf5b6a70c6d.png) as you can see it keep in True . . . . . However… ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/5/51d7925bc4fa2a86868e36e9a5c878458b63f111.png) Execute… ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/1/142bae4e1080034bdc9c9257e553615a164d4fa4.png) And this time the value changed ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [April 22, 2020, 12:15am UTC](https://forum.inductiveautomation.com/t/writing-to-a-client-tag-in-start-up-client-launch/34041/8 "2020-04-22T00:15:17Z")
Have you tried `[Client]` with a capital ‘C’ ?