The post function module can be found in Workflows so you can plug python code to run in transitions.
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Go to Settings → Workflows
Select the workflow you want to add a Post function and click “Edit” in the 3 dots on the right.
Click “Edit”.
Now you can either go to the Diagram View or the Text View.
(Diagram) Click in the Transition you want to add a Post function and follow the diagram below:
Transition → Post functions → Add Post Function → EFJ Python Script → Add
Now you are in the EFJ Python Script Module, so you should:
1. Name your script
2. Give it a description
3. Add a condition to execute
4. Add the code that you need to run.
5. Save
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