Custom message after submitting application

I was trying to replace the default message ‘Your application has been submitted.’ with a custom text.

I was able to display it using a custom snippet found in the Support threads. But it still not removing the default message!

function awsm_job_application_submitted_message() {
	global $awsm_response;
	$awsm_response['success'][] = esc_html__( 'Your application is under process. The HR team will get back to you if your application is shortlisted.', 'wp-job-openings' );
}
add_action( 'awsm_job_application_submitted', 'awsm_job_application_submitted_message' );

Can you help me to resolve it?