Solved Can't receive SMS or MMS via Flowroute

[nails_and_phones]

OK, so I've got this problem that so many others have faced. I can send outbound text messages but not receive them. So far I've tried...

* Double checking the API settings and completely recreating the SMS trunk and route.
* Checking my messaging stats in Flowroute - the messages as coming through that far at least.
* Running
curl https://api.flowroute.com/v2/numbers/FlowrouteDID/relationships/sms_callback -H "Content-Type: application/vnd.api+json" -X POST -d '{"data": {"attributes":{"callback_url": "3CXWebhook"}}}' -u acesskey:apikey
in the terminal as several threads have suggested, and the command just fails with an error that says "403 Invalid Resource Action".

I'm trying to get this ready for a business opening next week. My 3CX instance lives in Lightsail and was created using the 3CX Customer Portal.

Anyone have any ideas of something I could have missed? TIA!

 

[SweetAction]

For the sake of being thorough...

When you ran:

curl https://api.flowroute.com/v2/numbers/FlowrouteDID/relationships/sms_callback -H "Content-Type: application/vnd.api+json" -X POST -d '{"data": {"attributes":{"callback_url": "3CXWebhook"}}}' -u acesskey:apikey

You replaced:
FlowrouteDID with a 11 digit number in your flowroute account?
3CXWebhook with the webhook URL shown in the 3CX portal?
apikey with a key you generated in the Flowroute portal?

I ask because a 403 return makes me think the issue is with your API key specifically - can you try making a new one?

 

[nails_and_phones]

OK, I'm a moron. I had filled in the other two bits of information, but not 3CXWebhook - I left that as "3CXWebhook" in the command.

Ran the command again and we're golden. Thanks so much for your help!