Django CreateView success message not shown

Question

I have a CreateView and an UpdateView with success messages in both. But, only the UpdateView success message works and the CreateView message isn't show. Why is this happening?

from django.contrib.messages.views import SuccessMessageMixin
 class CreateRedirect (CreateView):
        model = MarketingRedirect
        template_name = 'marketing_redirect/create_redirect.html'
        success_url = reverse_lazy('backend_redirect')
        fields = ['redirect_from', 'redirect_to']
        success_message = "Redirect successfully created!"


    class EditRedirect(SuccessMessageMixin, UpdateView):
        model = MarketingRedirect
        fields = ['redirect_from', 'redirect_to']
        template_name = 'marketing_redirect/edit_redirect.html'
        context_object_name = 'redirect'
        success_url = reverse_lazy('backend_redirect')
        success_message = 'Review successfully updated'

Answer 1

Inherit SuccessMessageMixin for class CreateRedirect as shown below:

class CreateRedirect(SuccessMessageMixin, CreateView):
    ....