/// <summary>
        /// Update region
        /// </summary>
        /// <param name="context"></param>
        /// <param name="regionInfo"></param>
        public static void UpdateSeedNewsletterInfo(this IDynamicsClient context, Models.Newsletter newsletterInfo)
        {
            Newsletter newsletter = context.GetNewsletterBySlug(newsletterInfo.Slug);

            if (newsletter == null)
            {
                context.AddInitialNewsletter(newsletterInfo.ToViewModel());
            }
            else
            {
                // update Newsletter.
                MicrosoftDynamicsCRMlist list = new MicrosoftDynamicsCRMlist()
                {
                    Purpose     = newsletterInfo.Title,
                    Description = newsletterInfo.Description,
                    Listname    = newsletterInfo.Slug
                };

                context.Lists.Update(newsletter.Id.ToString(), list);
            }
        }