Alert tranport telegram

Good evening guys, I can not send a message to my telegram, I can not issue a critical alert for rule ‘Devices up / down’ to transport ‘telegram’ Error: HTTP Status code 400
thanks in advance

What have you done in trouble shooting?

@Alyssom_Oliveira When are you gettin Status code 400, then you have some mistake in your alert template for specific alarm, which telegram can’t send through.

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my alert template I used the default for device down and up
even though I adding a new device does not get alerts

I have a similar problem, also the templates are converted, and the test alarms do work ok