Acceptto integrates with Slack via its SAML solution and provides a single sign-on (SSO) MFA to ensure the convenience of cloud SSO without its potential security risks. Multi-Factor Authentication (MFA) is an extra layer of security used when logging into websites or apps. Individuals are authenticated through more than one required security and validation procedure that only you know or have access to. SAML-based SSO gives members access to Slack through an Acceptto identity provider (IDP).
- An Acceptto account with a configured Identity Provider and LDAP Agent. (See this page for the instructions)
Login to the Acceptto Dashboard with an administrative account and go to Applications.
Create a new application by selecting Create New Application.
In the New Application form, enter the following values under the General tab.
- Name - The application name displayed in the admin panel and application portal and used for push notifications and audit logs. (e.g. Slack)
- Type - Select "SAML Service Provider" from the options.
- Out of Band Methods - Select the allowed methods for approving MFA requests.
- Message for MFA Requests - Enter the user-facing message for Push, SMS, and email MFA requests (optional).
Under the SAML Service Provider Configuration tab, enter the following values:
- Issuer or Entity ID - Enter
- Sign in URL - The URL used to access your Slack instance, such as
- NameID Format - Select "Persistent" from the dropdown menu.
- Name Identifier- Select "Email" from the dropdown menu.
- Assertion Consumer Service (ACS) URL - Enter
- Single Logout URL -
- Algorithm - RSA-SHA256
- Issuer or Entity ID - Enter
Add new attribute as below:
- Friendly Name: Email
- Name: User.Email
- Value: mail
- Name format: unspecified
Click on Sign Message.
Download the SAML metadata and certificate for your organization from Acceptto.
Metadata Download at
https://sso.acceptto.com/<myorganization>/saml/download/metadataor view at
Certificate Download at
Login to your Slack instance as an administrator.
Navigate to Settings & administration > Workplace settings:
Click Configure for SAML Authentication. Fill the following fields with Acceptto information.
Click on Edit and copy the Acceptto Certification into the Public Certificate section.
Save the configuration.
Login to the Slack panel.
Click on Sign in with.
You will be redirected to the Acceptto SAML page.
After successful authentication through Acceptto, you will see the Slack panel:
If you require assistance, please email us at firstname.lastname@example.org
Want to learn more about our MFA solutions? Contact our Professional Services for a Demo today.
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All company, product, and service names used in this document are for identification purposes only. The use of these names, trademarks, and brands do not constitute an endorsement by the Acceptto Corporation.
Slack is either registered trademarks or trademarks of Slack and/or one or more of its subsidiaries in the United States and/or other countries.