doc update slack connector
@@ -10,9 +10,9 @@ You can use the same Slack connection in any number of integrations.
.Prerequisites
-* You created a Slack app for connecting {prodname} to Slack.
+* You https://api.slack.com/apps[created and installed a Slack app] for connecting {prodname} to Slack.
* You can obtain the Slack webhook URL for your Slack app.
-* You can obtain a legacy token that authorizes access to your Slack app.
+* You can obtain the *Bot User OAuth Access Token* that authorizes access to your Slack app.
.Procedure
@@ -23,9 +23,7 @@ display any available connections.
. Click the *Slack* connector.
. In the *Slack webhook URL* field, enter the webhook URL for your
Slack app.
-. In the *Token for accessing Slack API* field, enter the Slack-provided token,
-which you can
-https://api.slack.com/custom-integrations/legacy-tokens[obtain from Slack.]
+. In the *Token for accessing Slack API* field, enter the *Bot User OAuth Access Token*, which you can obtain from the Slack app's *OAuth & Permissions* page.
. Optionally, enter values for additional parameters:
+
* In the *Sending username for messages* field, enter the user name that
