i'm trying to call suitelet from ue but not understood why it's not calling ?

I predict your sample works, but only works if on the deployment of the suitelet you have the external option checked true

yes i checked

Did you check it works on insomnia or postman?

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I think your deployment ID needs to be the actual ID (custdeploy_xxx) not the internalid (1)

yes i wokred with also actual ID but same thing got

I'd take your suiteletUrl (debug log) and go to postman with it with your https.post setup

alright!

if its 500, something is wrong with the setup

You do not need to add the domain into the url that you get from

url.resolveScript

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