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Consider the following scenario. You upgrade Microsoft Dynamics CRM 3.0 to Microsoft Dynamics CRM 4.0. Next, you create a queue, and then you assign a queue item to the queue. Then, you delete the queue item. In this scenario, you receive the following error message:
Record is unavailable.
Additionally, if you have enabled platform tracing, you receive an error message that resembles the following error message:
Incident With Id = ecf58d9f-4ec9-dc11-9ca6-000d560d0cca Does Not Exist.
This problem occurs because the t_update_queueitem trigger in Microsoft Dynamics CRM 3.0 is not removed after you upgrade to Microsoft Dynamics 4.0.
This problem is fixed in the latest cumulative update rollup for Microsoft Dynamics CRM 4.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
949256 Microsoft Dynamics CRM 4.0 updates and hotfixes
For more information about the terminology that is used to describe Microsoft software updates, click the following article numbers to view the articles in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
887283 Microsoft Business Solutions CRM software hotfix and update package naming standards