By validating my design I got the NL-GWT-PLUGIN-ENGINE-03 error in the responses of some requests.
This error is also present by the recording.
The HTTP status code = 200, so I can not use the checkbox at 'Runtime parameters': Do not mark the specified HTTP error code when the same error occurs during the recording.
I saw that you can ignore Siebel errors by adding siebel.errors.to.exclude= in your controller.properties file.
Is this also possible for GWT errors?
Context: The GWT error is caused because the PDF files are not copied from production to the test environment. That's why the recording gives the same GWT error.