Power AutomateでSharePointリストの日時列(返却日時)を条件分岐で判定したいのですが、うまくいきません。
非null値評価をしたいが、できない。
条件判定が期待通りにいく方法を教えてください。
【やりたいこと】
「返却日時」列が空ではない場合に処理を実行したい。
【試したこと】
@empty(triggerBody()?['OData__x8fd4__x5374__x65e5__x6642_'])
@empty(triggerOutputs()?['body/返却日時'])
@empty(triggerOutputs()?['OData__x8fd4__x5374__x65e5__x6642_'])
@equals(triggerBody()?['OData__x8fd4__x5374__x65e5__x6642_'], null)
@equals(triggerOutputs()?['body/OData__x8fd4__x5374__x65e5__x6642_'], null)
他、画像の通り。右側条件式に"や''も試した。
triggerBodyやは、triggerOutputsは次の関数を評価できませんでしたと表示される。
画像は返却日時が空の状態です。

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I'm trying to use conditional branching on a SharePoint list date and time column (return date and time) in Power Automate, but it's not working.
I'm trying to evaluate a non-null value, but I can't.
Please tell me how to get the conditional branching to work as expected.
[What I want to do]
I want to execute a process if the "return date and time" column is not empty.
[What I tried]
@empty(triggerBody()?['OData__x8fd4__x5374__x65e5__x6642_'])
@empty(triggerOutputs()?['body/ReturnDateTime'])
@empty(triggerOutputs()?['OData__x8fd4__x5374__x65e5__x6642_'])
@equals(triggerBody()?['OData__x8fd4__x5374__x65e5__x6642_'], null)
@equals(triggerOutputs()?['body/OData__x8fd4__x5374__x65e5__x6642_'], null)
Others, as shown in the image. I also tried using " and '' in the condition expression on the right.
For triggerBody and triggerOutputs, it displays the message "The following function could not be evaluated."
The image shows the return date and time left blank.