解决导航属性 Dynamics WebAPI 深度插入时出现的错误

我正在使用微软动态Web API https://msdn.microsoft.com/en-us/library/mt607689.aspx将数据写入 Microsoft Dynamics 365 中的实体。当我尝试执行深插入 https://msdn.microsoft.com/en-us/library/gg328090.aspx#Create%20related%20entities%20in%20one%20operation我收到错误

未声明的属性“ccseq_employeeid”，在有效负载中仅具有属性注释，但在有效负载中未找到属性值。在 OData 中，只有声明的导航属性和声明的命名流可以表示为不带值的属性。

为什么我会收到此错误以及如何解决该错误？

JSON

{
    "ccseq_importdate" : "2017-05-28T04:00:00Z", 
    "ccseq_month" : "1", 
    "ccseq_year" : "2017", 
    "ccseq_name" : "Test", 
    "ccseq_status" : "100000000", "ccseq_ccseq_expensetransactionset_ccseq_expensetransaction_ExpenseTransactionSetID" : 
    [ 
        { 
          "[email protected] /cdn-cgi/l/email-protection": "/systemusers(6d2fd71b-32d1-dd11-a4f5-001a6449bbe7)", 
          "[email protected] /cdn-cgi/l/email-protection": "/ccseq_clients(663ebd00-73b9-4faf-90ed-f56bb9c2dc9b)", 
          "ccseq_navemployeeid" : "11111", 
          "ccseq_employeefirstname" : "John"
        }
    ]
}

ExpenseTransactionSet是的父级ExpenseTransaction意思是ExpenseTransaction有一个查找ExpenseTransactionSet. ccseq_ccseq_expensetransactionset_ccseq_expensetransaction_ExpenseTransactionSetID是一对多的关系。systemuser and ccseq_clients是在其中查找的独立实体ExpenseTransaction.

我还尝试了以下变体"[email protected] /cdn-cgi/l/email-protection"

• [email protected] /cdn-cgi/l/email-protection
• [email protected] /cdn-cgi/l/email-protection
• [email protected] /cdn-cgi/l/email-protection
• [email protected] /cdn-cgi/l/email-protection : systemusers()
• [email protected] /cdn-cgi/l/email-protection
• [email protected] /cdn-cgi/l/email-protection

我见过this https://stackoverflow.com/questions/32761311/create-annotation-to-a-contact-entity-in-microsoft-dynamics-crm-by-api问题和this https://stackoverflow.com/questions/42631164/microsoft-dynamics-web-api问题并尝试了建议的解决方案，但没有成功。

我在阅读中发现了答案this https://community.dynamics.com/crm/f/117/t/203648线。深度插入中导航属性的正确语法是使用子实体名称，后跟带有字段名称的括号。 json需要改成下面的

{
    "ccseq_importdate" : "2017-05-28T04:00:00Z", 
    "ccseq_month" : "1", 
    "ccseq_year" : "2017", 
    "ccseq_name" : "Test", 
    "ccseq_status" : "100000000",
    "ccseq_ccseq_expensetransactionset_ccseq_expensetransaction_ExpenseTransactionSetID" : 
    [ 
        {
          // Next two lines are changed 
          "ExpenseTransaction[[email protected] /cdn-cgi/l/email-protection]": "/systemusers(6d2fd71b-32d1-dd11-a4f5-001a6449bbe7)", 
          "ExpenseTransaction[[email protected] /cdn-cgi/l/email-protection]": "/ccseq_clients(663ebd00-73b9-4faf-90ed-f56bb9c2dc9b)", 
          "ccseq_navemployeeid" : "11111", 
          "ccseq_employeefirstname" : "John"
        }
    ]
}