2019-02-08 BUGFIX Create Customer Thread was not re-opening conversations
Created Customer Thread was not re-opening conversations when a new thread
was added. This is fixed now - the conversation will be re-opened unless
imported field is set to
2019-02-01 New HTTP Status
The API now returns HTTP 504 status when an internal call times out indicating that said request can be retried safely.
2019-01-25 NEW Return all customer entries, always
2018-12-06 Custom Field Search
You can now filter conversations by custom fields in List Conversations.
2018-11-14 BUGFIX Links in List endpoints work again as expected
List endpoints like List Conversations return pagination links - for example link to next page (
But in case the request contained query params (
/v2/conversations?status=closed), these were not included in the links which was illogical and actually a bug.
We brought the parameters back and the next link would now properly say
2018-09-26 Update thread text
And here’s Update Thread endpoint for you :-)
2018-09-25 Create customer entries
You can now add all customer entries (emails, phones, .. etc) in the Create Customer endpoint.
2018-09-25 Documentation updates
We looked at Create Conversation again and updated the documentation -
state was marked as required
and threads documentation was improved. List Webhooks is now visible and Create Webhook
was corrected as well - it used to display text from the Update Webook endpoint before.
2018-09-14 Additional customer fields in Create Conversation
Customer object in the Create Conversation endpoint supports additional fields like name, organization, etc.
state param in Authorization Code Flow
You can now use the optional
state parameter in the Authorization Code Flow
2018-09-05 Embed customer sub entities (emails, chats, …)
If you want to load a customer object with all entries like emails, chats and other, use the new
embed param in
Get Customer endpoint
2018-08-29 Add tags and custom fields when creating conversation
You can now add tags and custom fields directly in the Create Conversation endpoint.
2018-08-21 Draft reply
2018-08-10 Embed Threads to Conversation
Get Conversation endpoints now support
embed parameter that can pre-load threads
when returning the conversation object
2018-07-30 Web Hooks overhaul
It is now possible to create multiple web hooks per account!
2018-07-17 Documentation update
There was an issue in the List Conversations documentation. Query operator
mailboxName doesn’t exist,
it’s actually called
mailbox and it can be used in
/v2/conversations?query=(mailbox: "Help Scout").
We also documented status param
all that will give you all conversations no matter what their status is -
2018-05-15 Open for business
Mailbox API 2.0 is now available to all Help Scout users on paid plans.
2018-04-16 Transition service
Authors of Help Scout integrations can use our Transition service to exchange V1 API keys for OAuth2 tokens.
2018-04-11 Custom Fields in conversation object
2018-04-10 - Web Hooks!
The API now supports Web Hook endpoints
2018-03-06 - Imported threads with
Imported threads now allow overriding of
2018-03-06 - Update conversation owner
Update Conversation is able assign and un-assign a conversation
2018-03-05 - Update conversation status
Update Conversation is able to update the conversation status now
2018-02-28 - Locked conversations
The API now returns nice error message when adding threads to conversation with 100 or more conversations.
2018-02-26 - Moved or merged conversations
The API now handles moved or merged conversations
2018-02-20 - Mailbox API 2.0 in Beta
Mailbox API 2.0 is now Beta. It covers almost all V1 resources with the exception of Webhooks and Workflows.
Dates are in