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I am having an issue where I can't subscribe to non English topics in FCM. I tried to trigger the notification via python first. Got status 200 and error message {"error":"InvalidParameters: Bad topic or filter provided"}

Then I thought to play around Firebase console and set Message topic to non English but it never allows that. enter image description here

So far I have tried unicode -> hello-%u0939%u093F%u0928%u094D%u0926%u0940 -> hello-\u0939\u093F\u0928\u094D\u0926\u0940

but nothing works. It is unclear in the documentation to what it accepts (https://firebase.google.com/docs/cloud-messaging/android/topic-messaging?authuser=0&hl=en)

I am just trying to figure it out if this even supported by FCM or not?

Any help will be deeply appreciated. Thanks in advance.

androidStud
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  • From the documentation: "Developers can choose any topic name that matches the regular expression: `[a-zA-Z0-9-_.~%]+`". So only ASCII characters are allowed. – Frank van Puffelen Oct 26 '22 at 14:33

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