I have now tryed to change my code to reflect the SendEmailTask In Ucommerce.Pipelines.Common 

So instead of LocalizationContext i am now using CommerceConfigurationProvider but as funny as it sounds it wants to show the email in US format and not en-GB 
Where are these data stored ? 

Updated Code

 public class SendOrderCompletedEmailTask : IPipelineTask<PurchaseOrder>
    {
        private IEmailService _emailService;
        private CommerceConfigurationProvider _commerceConfiguration;

        public SendOrderCompletedEmailTask(IEmailService emailService, CommerceConfigurationProvider commerceConfiguration)
        {
            _emailService = emailService;
            _commerceConfiguration = commerceConfiguration;
        }

        public PipelineExecutionResult Execute(PurchaseOrder subject)
        {
            if (subject != null)
            {
                try
                {

                    var emailProfile = subject.ProductCatalogGroup.EmailProfile;

                    CustomGlobalization customGlobalization = new CustomGlobalization(_commerceConfiguration);
                    customGlobalization.SetCulture(new CultureInfo(subject.CultureCode ?? customGlobalization.DefaultCulture.ToString()));

                    var queryStringParameters = new Dictionary<string, string>();
                    queryStringParameters.Add("orderGuid", subject.OrderGuid.ToString());
                    queryStringParameters.Add("customerId", subject.Customer.CustomerId.ToString());

                    _emailService.Send((ILocalizationContext)customGlobalization, emailProfile, "OrderShipped", new MailAddress("[email protected]"), queryStringParameters);
                    //_emailService.Send(_localizationContext, emailProfile, "OrderShipped", new MailAddress(subject.BillingAddress.EmailAddress), queryStringParameters);

                    return PipelineExecutionResult.Success;

                }
                catch (Exception ex)
                {
                    var t = ex;

                    return PipelineExecutionResult.Error;
                }

            }

            return PipelineExecutionResult.Error;

        }

    }

Hi Troels,

The pipelines will actually use the culture code stored on the order itself. The reason for this is that you might want to send out e-mail in a different context than the user was originally in, such as order processing, and so uCommerce will track the origianal culture code on the order and use that.

You can change the culture on the order if you want it to be something else.

Hey Søren 

Thx for the reply, That was exatly was i was expecting that the order it self knows when culture it was given in. But what determines this, is it the culture set on the website and then what happens if u use "Default" as selected host name in the shop configuration ? 

and last but not least u say i can change the culture, where do i do that ? 

//Troels 

for someone els stumbling over this post u can set default culture in config under :

<commerce>
   <catalogConfiguration defaultCultureCode="en-US" enforceCategoryNameUniquenessWithinCatalogs="true" /> 

//Troels 

It will actually always use the culture specified on the thread. So it will either be the culture you set up on whatever node the user is visiting or the default provided by ASP.NET and ultimately the browser culture.

Hope this helps.

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