1.Goto Admin > Developer space --> Custom Functions > Global function > Click ''New'' > Copy and Paste the content from the attachment configuration.txt and save it with a name.
2.Update the URL and technician key in the script. Refer to the attached screenshot.
Refer to the below link.
3.Go to Admin -->Developer space --> Custom Functions --> Note --Click ''New''> Copy and Paste the content from the attachment (3.update_additionalfield) and save it with a name.
4. Modify the global function name and additional field API name in the script. Refer to the attached screenshot.
5. Configure Note custom trigger (as shown below)