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May 22, 2026
Question

Custom Action with mLTS certificate based authentication

  • May 22, 2026
  • 1 reply
  • 9 views

Hello Team,

Does anyone has experience working with Custom action using mTLS certificate-based authentication ?

I am trying to make an API call that uses mTLS certificate-based authentication (the certificate is used for both authentication and authorization). As per Adobe documentation - https://experienceleague.adobe.com/en/docs/experience-platform/landing/governance-privacy-security/encryption#mtls-protocol-support:~:text=of%20the%20data.-,mTLS%20protocol%20support,-You%20can%20now , no changes are required in the custom action or journey, as Adobe will automatically handle the process to enable mTLS. However, the API call is returning a 403 error.

Could someone please help confirm if any additional configurations are required to resolve this issue?

@SatheeskannaK ​@Mayank_Gandhi ​@Pulkit_Jain_ ​@ManikSingla 

1 reply

DavidKangni
Community Advisor
Community Advisor
May 22, 2026

Hi ​@DN1191 

 

is your server endpoint mTLS only enabled connection?

Thanks,

David

David Kangni