# Content validation question

**URL:** <https://community.dynatrace.com/t/content-validation-question/41859>\
**Category:** Synthetic Monitoring\
**Tags:** synthetic-monitoring\
**Created:** [September 29, 2023, 1:32pm UTC](https://community.dynatrace.com/t/content-validation-question/41859 "2023-09-29T13:32:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mizso74](https://avatars.discourse-cdn.com/v4/letter/m/f05b48/32.png) [@mizso74](https://community.dynatrace.com/u/mizso74)\
**Post date:** [September 29, 2023, 1:32pm UTC](https://community.dynatrace.com/t/content-validation-question/41859/1 "2023-09-29T13:32:03Z")

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Hi Folks,

What is the problem with my content validation rule? What is worng with my configuration?

 ![Mizs_0-1695993989280.png](https://global.discourse-cdn.com/dynatrace/original/3X/6/5/65aaaa4156662c4320bafbd4399e1f7468a757f0.png)

If I leave blank the last confirguration I always receive:&nbsp;Placeholder values were not defined

If I fill out with the default {windows[0]} the last configuration I always receive:&nbsp;The specified target window “{window[0]}” is not found

 ![Mizs_1-1695994125922.png](https://global.discourse-cdn.com/dynatrace/original/2X/c/c97071bf83419cc8be8298c5f5983c392b8c3590.png)

Thanks in advance.

Best regards,

Mizső

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**Author:** ![AntonPineiro](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/antonpineiro/32/49_2.png) [@AntonPineiro](https://community.dynatrace.com/u/AntonPineiro)\
**Post date:** [September 29, 2023, 2:10pm UTC](https://community.dynatrace.com/t/content-validation-question/41859/2 "2023-09-29T14:10:43Z")

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Hi,

Is that a label as plain text that appear in the webpage?

If yes, I would remove “{” and “}” in specific text field and I will remove "{window[0]}, just blank.

Best regards

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<div class="post-metadata">

**Author:** ![mizso74](https://avatars.discourse-cdn.com/v4/letter/m/f05b48/32.png) [@mizso74](https://community.dynatrace.com/u/mizso74)\
**Post date:** [September 29, 2023, 7:30pm UTC](https://community.dynatrace.com/t/content-validation-question/41859/3 "2023-09-29T19:30:07Z")

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Hi&nbsp;[@AntonPineiro](https://community.dynatrace.com/user/58682),

I have not understand correctly the explanation about the brakets…

It works fine based on your guidance.

Thanks very much.

Best regards,

Mizső

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<div class="post-metadata">

**Author:** ![AntonPineiro](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/antonpineiro/32/49_2.png) [@AntonPineiro](https://community.dynatrace.com/u/AntonPineiro)\
**Post date:** [September 30, 2023, 7:09pm UTC](https://community.dynatrace.com/t/content-validation-question/41859/4 "2023-09-30T19:09:53Z")

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Hi,

You are welcome.

I wanted to say removing placeholders, only specific text. It means “my text” instead of “{my text}”.

Best regards