Resubmitting a message from dead letter queue - Azure Service Bus

Question

I have created a service bus queue in Azure and it works well. And if the message is not getting delivered within default try (10 times), it is correctly moving the message to the dead letter queue.

Now, I would like to resubmit this message from the dead letter queue back to the queue where it originated and see if it works again. I have tried the same using service bus explorer. But it gets moved to the dead letter queue immediately.

Is it possible to do the same, and if so how?

Answer 1

You'd need to send a new message with the same payload. ASB by design doesn't support message resubmission.

Answer 2

Try to remove dead letter reason

resubmittableMessage.Properties.Remove("DeadLetterReason");
resubmittableMessage.Properties.Remove("DeadLetterErrorDescription");

full code

using Microsoft.ServiceBus.Messaging;
using System.Transactions;

namespace ResubmitDeadQueue
{
    class Program
    {
        static void Main(string[] args)
        {

            var connectionString = "";
            var queueName = "";

            var queue = QueueClient.CreateFromConnectionString(connectionString, QueueClient.FormatDeadLetterPath(queueName), ReceiveMode.PeekLock);

            BrokeredMessage originalMessage
                ;
            var client = QueueClient.CreateFromConnectionString(connectionString, queueName);
            do
            {
                originalMessage = queue.Receive();
                if (originalMessage != null)
                {
                    using (var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
                    {
                        // Create new message
                        var resubmittableMessage = originalMessage.Clone();

                        // Remove dead letter reason and description
                        resubmittableMessage.Properties.Remove("DeadLetterReason");
                        resubmittableMessage.Properties.Remove("DeadLetterErrorDescription");

                        // Resend cloned DLQ message and complete original DLQ message
                        client.Send(resubmittableMessage);
                        originalMessage.Complete();

                        // Complete transaction
                        scope.Complete();
                    }
                }
            } while (originalMessage != null);
        }
    }
}

Thanks to some other responses here!