Issue with new lines in text which is being passed to ChatGPT API using Invoke Web Service Action

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Posted on by Rory_Walsh

Hi All,

I am using pad to try and summarise a long report using ChatGPT.

One issue I am hitting involves the presence of new lines in the text that I am feeding in as the prompt.

If the prompt includes new lines I get an error (400) Bad Request; see Example A.jpg

If I remove all new lines everything works okay; see Example B.jpg

My worry is that if I remove new lines from the prompt that this will produce a prompt that is harder for ChatGPT to understand. I worry that it will not recognise different sections within the source report, etc.

I am looking for a way to create a prompt which includes new lines that does not throw this (400) error.

Any assistance would be greatly appreciated.

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Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi @Rory_Walsh

Just give a try with this :

So may be try use Environment.NewLine instead of new line entering like below using Run .NET script action?

and use that output_data variable for your prompt into your api call

Give a try and let me know whether it worked for you or not

Thanks & Regards,
Nived N 🚀

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Rory_Walsh 37 on at

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Hi Nived,
Thanks for considering this.
When I use the approach you suggest I am still getting the bad request error.
Looking at the output_data variable I can see that there is text on three separate lines; see attached.
Based on a lot of trial and error, I can only ever seem to get this to work when the content is all organised on one line within the prompt variable; see Example B in the original message.

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Agnius Bartninkas Most Valuable Professional on at

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Try replacing the newlines with \n. This is the character that should be accepted in the JSON body that you send to the API.

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Rory_Walsh 37 on at

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Thanks Agnius; this is working 😊

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