Hello Isam

Go to your la brary and go to messages library
Click on the green button from your right "create a new message"
Name you message
Click on add validation and select the validation "require response"
Write your message
For translating the message click on that same little window on "translate message" at your right
Translate your message and save
Go to your survey
Click on survey options
On the "Survey experience" block you will find an option that says "upload your custom validation messages" click on that and select the message that you have created before
Here are some screenshots from the process and the result!
Hope it works

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Thank you Isabel for the detailed description
Under Validation messages I can't find the one I want to customize, it the message comes in a popup box to request an answer for a non-required question.

the system message currently says (There is 1 unanswered question on this page. Would you like to continue?)

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Hello Isam

Go to your la brary and go to messages library
Click on the green button from your right "create a new message"
Name you message
Click on add validation and select the validation "require response"
Write your message
For translating the message click on that same little window on "translate message" at your right
Translate your message and save
Go to your survey
Click on survey options
On the "Survey experience" block you will find an option that says "upload your custom validation messages" click on that and select the message that you have created before
Here are some screenshots from the process and the result!
Hope it works

 

 

 

 

 

 

 

Still helpful in 2023 :)

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