Should we use a rule or a hook for inject custom claim into access token?

[colin.coutts]

Hi @tommy.chheng thanks for reaching out to the Auth0 Community!

My suggestion would be to stick with Rules as they’re a bit more flexible but I’m not entirely sure of your use-case so I hesitate to advise too strongly. The Community Engineer Dan Woda has a great post about some of the functional differences between Rules and Hooks which might help you to determine where your code is best run.

Rules and Hooks. Which gets precedence?

Hi @robertz, I apologize for the delay in response and would like to try and provide an answer for future users who have a similar question. Pre and post registration hooks run asynchronously, but are triggered before a rule. To visualize I can link you to this document: [image] Rules are going to run during every authentication and hooks are only going to run during their specific event, before or after registration or during a client credentials grant, depending on the type of hook you ha…

If you can go into your use-case a bit more I may be able to point you in the right direction.

Best,
Colin