If you have unmapped users, one of the possible reasons could be that objects (E-mail addresses, for example) used for the resource mapping may not have been populated in one of the applications.
如果您有未映射的用户，其中原因之一可能是资源映射使用的对象(比如，电子邮件地址)可能在其中的一个应用软件中并没有被填充。
Such applications range from Banks generating customer statements for E-mail delivery to readers buying specific book chapters and receiving them in PDF format.
这类应用程序包括银行生成用于电子邮件投递的客户报表，到读者购买特定图书章节并以pdf格式接收这些文档。
It doesn't have the PIM apps that users would expect from a PDA, but many devices that are designed as PDAs are used primarily for other applications, such as Web and E-mail access.
并没有用户对于PD a所期望的那种PIM应用程序，不过，很多以PD a为目标而设计的设备也都纷纷用于其他应用程序了，例如web和e - mail的访问。
It doesn't have the PIM apps that users would expect from a PDA, but many devices that are designed as PDAs are used primarily for other applications, such as Web and E-mail access.
并没有用户对于PD a所期望的那种PIM应用程序，不过，很多以PD a为目标而设计的设备也都纷纷用于其他应用程序了，例如web和e - mail的访问。
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