The state of the registration doesn't change with ECA action Set the Registration State

What state are you attempting to change to? The action requires that you pass the new state in. Please let me know the existing state and the desired new state that is passed to the action.

I've created the states present and certificate.
In registration workflow I've set: from present to certificate
I want ECA to change present to certificate

Are there any messages in the logs? Is this on a test system - are you able to set breakpoints and see if the action is even called?

no messages in reports
in ECA I've placed another action to send me an email and that action is working

Is the condition/trigger for the action that sends email the same as this one

yes. I'm sending the ECA export

The "set state" action will not take place unless you setup a valid state transition from "present" to "certificate" in the workflow. This is typically done from this page in Drupal admin:

/admin/config/workflow/workflows/manage/registration

After installing your ECA model, once I setup the transition, the new state was saved. Prior to creating the transition, I experienced the same issue you did, which makes sense since the action checks for the transition.

PS - sorry for the test emails, I forgot to enable email reroute in my test environment

I have the transition set before de ECA, I think you are mentioning what I have in the image attach.
or do I have to set another?

forgt the image, sorry

Can you send screenshots of (1) this page: /admin/config/workflow/workflows/manage/registration and (2) the registration being viewed which is supposed to change state. It looks like you have the correct setup but want to double check. Also, does the user viewing the registration have the permissions to change state and edit registrations - try with an admin account and if that works it means it is a permissions issue for the user you were trying before.

Thank you John, that was it a problem of permissions, the user had no permission to edit own registration or change state. I gave those permissions and the ECA is applied!

thank you so much for your help!
Susana