Added warnings about token consumption.

docs/03-tutorials/01-simple-viewer/03-data.mdx

@@ -49,6 +49,12 @@ into the Viewer in our webpage. To do so, we will need to start a new conversion
 in the [Model Derivative](https://aps.autodesk.com/en/docs/model-derivative/v2/developers_guide/overview)
 service, and checking the status of the conversion.
 
+:::caution
+Please note that the translation of designs using the Model Derivative service has a cost associated with it,
+see the [Pricing](https://aps.autodesk.com/pricing) page for more details. We recommend that you use a trial
+subscription when following this tutorial.
+:::
+
 Model Derivative service requires all IDs we use in the API calls to be [base64](https://wikipedia.org/wiki/Base64)-encoded,
 so we include a small utility function that will help with that.
 

docs/03-tutorials/04-design-automation/04-execute-workitem.mdx

@@ -14,6 +14,12 @@ The relationship between an Activity and WorkItem can be thought of as a “func
 
 In this tutorial sample, the workitem specifies the input file URL, the input JSON data with the new parameter values, and the destination URL for the output file. This sample will upload the input file to a OSS bucket before starting the workitem.
 
+:::caution
+Please note that executing an activity in the Design Automation service has a cost associated with it,
+see the [Pricing](https://aps.autodesk.com/pricing) page for more details. We recommend that you use a trial
+subscription when following this tutorial.
+:::
+
 <EnvTabs
   NodeJsVsCode={WorkitemForNodejs}
   DotNetVsCode={WorkitemForNet}