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I have a question about how to set up a client certificate.
I have a question about the following regarding how to set up a client certificate.

1. When configured within OutSystems, will the certificate be treated as a self-certified certificate?
Or will it be treated as authenticated by a CA?



2. Do all client certificates have to be set manually for each API?



3. is it possible to add authentication by certificate at user login, rather than setting it up on a per API basis, which is what we want to do?




3-1. the "End User Authentication" site at the following URL did not mention how to authenticate with a client certificate.


URL:https://success.outsystems.com/ja-jp/Documentation/11/Developing_an_Application/Secure_the_Application/End_Users/End_Users_Authentication


Thank you in advance for your response.

2025-08-13 09-41-37
Shubham Sharma
Champion

Hi Okamoto,

1. The treatment of a client certificate in OutSystems will depend on how it is configured. If it's a self-signed certificate, it will be treated as such. If it's authenticated by a CA, it will be treated as such.

2. It depends on the implementation, but typically, client certificates would have to be set manually for each API that requires authentication via the client certificate.

3. Yes, it is possible to add authentication by a certificate at user login in OutSystems. This can be done through custom code or by using a custom authentication plugin.

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