Yes, would like to know the reason behind an increase in these errors. I have already raised a ticket and posted a query on the developer forum as well. I haven't received any updates on the developer forum question.

We had to renew the subscription and then send a fax from the developer portal, to make sure it works. We do not understand the reason behind issues, and why the webhook fails and the incoming faxes are purged.

Following is an example of the "Purged" incoming fax. Time is in UTC.

2020-11-04 03:26:19.053

{   "uuid":"1219366765209121432",   "event":"/restapi/v1.0/account/334268009/extension/277890029/fax?direction=Inbound",   "timestamp":"2020-11-04T03:26:16.328Z",   "subscriptionId":"c73ed71d-61d5-4aa9-aea3-93ffb4123766",   "ownerId":"334268009",   "body":{      "uri":"https://api.ringcentral.com/restapi/v1.0/account/334268009/extension/277890029/message-store/1379138253028",      "id":1379138253028,      "type":"Fax",      "availability":"Purged"   } }

Any updates on this issue?

Any updates on this? Our client's are facing serious issues because of this. Here is another example.

{

   "uuid":"8568780398552554651",

   "event":"/restapi/v1.0/account/334268009/extension/277890029/fax?direction=Inbound",

   "timestamp":"2020-11-15T03:23:09.381Z",

   "subscriptionId":"00e80f08-46dc-49a4-a80b-9a436aa3748d",

   "ownerId":"277890029",

   "body":{

      "uri":"https://api.ringcentral.com/restapi/v1.0/account/334268009/extension/277890029/message-store/1386497129028",

      "id":1386497129028,

      "type":"Fax",

      "availability":"Purged"

   }

}

There is a limit for how many WebHook subscriptions you can create.

Are you trying to create too many of them?