Slack connection
The Slack connection represents a single Slack account, including login credentials.
If you have multiple accounts, use a separate connection for each and configure the URL accordingly. Pair a single connection with different Slack operations to perform a unique action against a Slack account.
Connection tab
Complete the connection settings in the OAuth 2.0 tab.
Authentication Type - OAuth 2.0 is the default authentication and cannot be changed.
OAuth 2.0 tab
For OAuth 2.0 authentication, you may need to specify in the external application the Boomi callback or redirect URL. The callback URL is https://platform.boomi.com/account/<your_account_ID>/oauth2/callback where <your__account_ID> is your Integration account ID. You can also find your account ID in the Integration platform at Settings > Account > Account Information.
Client ID - The Client ID obtained from Slack.
Client Secret - The client secret obtained from Slack.
Access Token - The encrypted access token retrieved from Slack that is used to access protected resources. Click to generate the access and refresh tokens. When a new window opens asking you to confirm offline access, click Accept. A second message indicates the access token was received and successfully generated.