Configuring SAML SSO for Assembla
These steps will guide you through setting up the single sign-on functionality between ADSelfService Plus and Assembla.
Prerequisite
- Login to ADSelfService Plus as an administrator.
- Navigate to Configuration → Self-Service → Password Sync/Single Sign On → Add Application, and select Assembla from the applications displayed.Note: You can also find Assembla application that you need from the search bar located in the left pane or the alphabet wise navigation option in the right pane.
- Click IdP details in the top-right corner of the screen.
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In the pop-up that appears, note down the values of Login URL, Sha1 Fingerprint and download certificate file by clicking Download Certificate link. We will need these values in a later step.

Assembla (Service Provider) configuration steps
- Login to Assembla with an administrator’s credentials.
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Navigate to Menu → Admin → SAML Authentication.
(https://[yourSubDomain].assembla.com/p/admin)
- In the SAML authentication section, Select the Enable SAML box.
- Paste the Login URL and Fingerprint, copied in Step 4 of Prerequisite, in the respective fields.
- Open the downloaded certificate as a text file. Copy and paste the content it in the X.509 Certificate text field.
- Click Update SAML Settings. .

ADSelfService Plus (Identity Provider) configuration steps
- Now, switch to ADSelfService Plus’ Assembla configuration page
- Enter the Application Name and Description.
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In the Assign Policies field, select the policies for which SSO need to be enabled.
Note: ADSelfService Plus allows you to create OU and group-based policies for your AD domains. To create a policy, go to Configuration → Self-Service → Policy Configuration → Add New Policy.
- Select Enable Single Sign-On.
- Enter the Domain Name of your Assembla account. For example, if you use johndoe@assembla.com to log in to Assembla, then assembla.com is the domain name.
- Enter the sub-domain name of your Assembla portal in the SP Identifier field. Example format: https://<sp_identifier>.assembla.com
- In the Name ID Format field, choose the format for the user login attribute value specific to the application.
- Click Add Application
Note: Use Unspecified as the default option if you are unsure about the format of the login attribute value used by the application
Note: For Assembla, single sign-on is supported for SP and IDP initiated flow.