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Error message when you try to open a Phone Call activity, a Fax activity, or a Letter activity in Microsoft Dynamics CRM 3.0: "This lookup can only display one item"
Article ID: 933977 - View products that this article applies to.
Consider the following scenario. In Microsoft CRM 1.2, you have multiple recipients in the From field or in the Sender field in one of the following activities:
Exception Details: System.ArgumentException: This lookup can only display one item. Lookup ID = from
This problem may occur because Microsoft Dynamics CRM 3.0 allows only one recipient in the From field or in the Sender field of an activity. This problem occurs because of a design change in Microsoft Dynamics CRM 3.0.
This problem was corrected in Microsoft Dynamics CRM 3.0 Update Rollup 3.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935364To resolve this problem, contact technical support for Microsoft Dynamics CRM.
(http://support.microsoft.com/kb/935364/ )Update Rollup 3 is available for Microsoft Dynamics CRM 3.0
For information about technical support for Microsoft Dynamics CRM, visit the following Microsoft Web site: