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Issue) Power Automate with Dynamics 365 Fin & Opr connector

I made Power Automatic with the Dynamics 365cm connector.


This flow was normal until last week, but an error occurred suddenly today.


I have never modified this flow this week.


The function of this flow is the same as:


1) Pass the PackingSlipId and LineNum to the parameters.

   PackingSlipId (string), LineNum(real)


2) Entity : YH_AP_PurchReceiptLineListIf Entity

Action Method : DeleteByLine

* function to delete one line at a time.


3) return Success or Fail Message


  "message""An error has occurred.  InvokeAction - Model state is invalid. parameters: One or more parameters of the operation 'DeleteByLine' are missing from the request payload. The missing parameters are: _LineNum.\r\nclientRequestId: 456cf3f2-4a13-4b6d-9e44-846c669aaabb",
  "error": {
    "message""An error has occurred.  InvokeAction - Model state is invalid. parameters: One or more parameters of the operation 'DeleteByLine' are missing from the request payload. The missing parameters are: _LineNum."
  "errors": []

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