I am getting this error on process : This node cannot complete. Please start the next node if necessary.
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Please share your node configurations, and any code in the node inputs/outputs and your Process model Images.
sure, that I can share.
Can you share the email that you got?? And the error from the script task.
Still need details but try passing username properly.wrap it in tostring(). Check it standalone whether your code giving correct output
And one more suggestion, this won't solve your problem but I use it as a best practice.
Use the keyword arguments only when they are available. Look for auto suggestions to see if it supports them.
Coming to your error, as Venky said, please add the screenshot of the error for better understanding.