Slack SAML Single Sign-On (SSO) | Login into Slack using WordPress

Overview

Slack SSO - Login using WordPress Users (WP as SAML IDP) Plugin enables Single Sign-On (SSO) login into Slack using WordPress Login credentials. In this guide we will Setup SAML Single Sign-On (SSO) with WordPress in Slack by configuring Slack as Service Provider (SP) and WordPress as Identity Provider (IDP).

Pre-requisites : Download And Installation

• To configure WordPress as SAML IDP and Slack as SP with WordPress, you will need to install the miniOrange Login using WordPress Users (WP as SAML IDP).

Configuration Steps

Step 1: Setup Slack as SP (Service Provider)

• Go to the WordPress IDP plugin, navigate to the IDP Metadata tab.
• Here, you can find the Identity Provider Metadata URL /XML Metadata or endpoints like IDP Entity ID, SAML Login URL, SAML Logout URL (Premium Feature), Certificate for SP configuration.

• Open a new browser tab or window, Log in to your Slack Account Admin.
• Go to Settings & administration and select Workplace settings.

• Select Authentication and click on Configure for SAML Authentication.

• Enter the following values in the respective fields:

• Under Advanced Options, use the default value for the Service Provider Issuer, it must be https://slack.com.

• Under Settings, select the desired options for SAML Authentication for users and workspace.

• Click on Save Configuration.

You have successfully configured Slack as Service Provider.

Step 2: Configure WordPress (WP) as IdP (Identity Provider)

• In the WordPress IDP plugin, navigate to the Service Provider tab and enter the values corresponding to the information from Slack.
  

• Click on the Save button to save your configuration.

Step 3: Attribute Mapping (This is a premium feature)

• In the WordPress IDP plugin, navigate to the Attribute/Role Mapping tab.
• In the User Attributes section, enter the following information and click on Save .
• You can also add more attributes by clicking on + sign to add attributes.

Name	User Meta Data
User.Email	user_email
User.Username	user_login
first_name	first_name
last_name	last_name

In this Guide, you have successfully integrated Slack - SAML Single Sign-On (SSO) with plugin- Login using WordPress Users (WP as SAML IDP). Configuring Slack as SP and WordPress as IDP. This solution ensures that you are ready to roll out secure Single Sign-On (SSO) access with SAML 2.0 Authentication into Slack using WordPress login credentials.

Related Articles

• What is Single Sign-On (SSO)?
• What is SAML?
• Login with WordPress
• Additional SAML IDP guides
• Frequently Asked Questions (FAQs)