Correlation using workflows

Question

I have 3 receive send activities. I have configured first send and second receive activities as per the documents.

Refer: http://msdn.microsoft.com/en-us/magazine/gg535671.aspx

My first 2 operation contracts are working good. But when i call my final receive activity I get the following error message

The execution of an InstancePersistenceCommand was interrupted because the instance key '761c9e4a-2835-d6ec-6017-581a5fbfb741' was not associated to an instance. This can occur because the instance or key has been cleaned up, or because the key is invalid. The key may be invalid if the message it was generated from was sent at the wrong time or contained incorrect correlation data.

I am sure this happens when my 3rd receive activity is not able to correlate to 2 send activity. But I am not sure how do configure the 2nd send activity among these correlations Initializers.

I am using workflowservice.

Answer 1

You should configure the third Receive activity exactly the same way as the second and use the same correlation value when doing the 3rd operation.