elastic
diff --git a/‎CHANGELOG.asciidoc‎
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diff --git a/‎elasticapm/contrib/flask/__init__.py‎
Lines changed: 1 addition & 0 deletions b/‎elasticapm/contrib/flask/__init__.py‎
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@@ -41,6 +41,7 @@ endif::[]
 
 * Fix Django's `manage.py check` when agent is disabled {pull}1632[#1632]
 * Fix an issue with long body truncation for Starlette {pull}1635[#1635]
+* Fix an issue with transaction outcomes in Flask for uncaught exceptions {pull}1637[#1637]
 
 
 [[release-notes-6.x]]
 
@@ -111,6 +111,7 @@ def handle_exception(self, *args, **kwargs):
  #
  # Unfortunately, that also means that we can't capture any response data,
  # as the response isn't ready at this point in time.
+ elasticapm.set_transaction_outcome(outcome=constants.OUTCOME.FAILURE, override=False)
  self.client.end_transaction(result="HTTP 5xx")
 
  def init_app(self, app, **defaults):
Original file line number	Diff line number	Diff line change
`@@ -111,6 +111,7 @@ def handle_exception(self, args, *kwargs):`
`111`	`111`	`#`
`112`	`112`	`# Unfortunately, that also means that we can't capture any response data,`
`113`	`113`	`# as the response isn't ready at this point in time.`
	`114`	`+ elasticapm.set_transaction_outcome(outcome=constants.OUTCOME.FAILURE, override=False)`
`114`	`115`	`self.client.end_transaction(result="HTTP 5xx")`
`115`	`116`
`116`	`117`	`def init_app(self, app, **defaults):`