注意，不需要对SAP客户机id进行特殊处理，因为它是通过底层会话参数隐式地提供的。
Note that no special treatment of the SAP client ID is required since it is implicitly given by the underlying session parameter.
在第一种情况下，由于消息尚未被处理，客户端只需要简单的提交信息，而服务器端不需要采取任何特殊行为。
In the first case, the client can simply resubmit the message and no particular action need be taken on the server as the message has not yet been processed.
客户机不需要制定编码或者转义，服务器上也不需要特殊处理（除了标准 XML 解析以外）。
No additional encoding or escaping is required on the client, and no additional processing (beyond the standard XML parsing) is required on the server.
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