I am not able to make webhooks new page subscription its giving me an error in the callback url saying "(The URL couldn't be validated. Response does not match challenge, expected value = '736926330', received=')", i am not having a domain name as same as my app name.
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What is unclear? Your script does not return the challenge value as expected. Only you can find out why - so do some debugging. – CBroe Jun 07 '16 at 08:26
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i did some debugging like changing the url path to my blogspot,gmail,wordpess urls buts its like giving the same error like its not able to match with my challenge. @CBroe – Akhil Ravindran Jun 07 '16 at 08:36
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What, why are you randomly changing URLs? You should know under which address your script resides, no? – CBroe Jun 07 '16 at 08:36
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i haven't made any scripts for this as its not a live project thought that webhooks don't need servers or backed scripts or a live website to work. Was trying to learn and make facebook messenger bot feature as an private page user. @CBroe Should i take it live to make it work??? – Akhil Ravindran Jun 07 '16 at 08:51
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_“thought that webhooks don't need servers or backed scripts or a live website to work”_ – you thought wrong. – CBroe Jun 07 '16 at 09:12
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You need a server the supports https and script code running on it to authenticate the subscription.

Kev
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