In Power Automate, it is not called Dictionary, instead it is called Custom Object Data Type.
First, we will need to declare a Custom Object using the Set Variable action. To do this, give your variable a name (in this case we’re calling it NewCustomObject) and type %{{}}% into the “To:” field.
Next, we will use Set Variable to indicate the property name/key. In this case we will set the key as “Name” and the value as “Jack”.
We have now created a dictionary type with a Name and Value!