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The return type will be an object from Send message to SAP action. Compose and Parse JSON action are used for different scenarios in which you are working with JSON format. If the output is JSON object from send message to SAP action then you can use Parse JSON action to create user-friendly fields or tokens for those properties. In the example, they have initialized the variable with JSON object but you can use the output of your action to the Content parameter of Parse JSON action. Please refer to the parse json document for detailed steps on how to use Parse JSON action and use the parse json output to send an email.
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