Document Size Validation

Set the variable to null in your cancel button. The variable that you are using as saveInto of your file upload field. 

Hi Harshit, thanks for your response.SaveInto will be null since I am giving the doc size validation,but in target folder it get saved. Any way to handle this?

Then it shouldn't save. Anyway, you can delete the document in the process after checking the button action. Use delete document smart service. 

Unknown said:

Set the variable to null in your cancel button.

This doesn't work.  The variable will become NULL sure enough, but the file is still written to the local filesystem, as OP says.

Jansi J said:

if there is any way to avoid saving this file in Appian folder if document size is more than 10MB

2 methods:

1. Disable the CANCEL button if there's a new file uploaded - and provide a tooltip on the cancel button asking the user to clear out the upload field first.
2. Leave the CANCEL button enabled; continue to save the uploaded document ID into the rule input it was targeted at previously, but in the CANCEL path process flow, add logic to check if there is a populated document ID, and if so, delete it.  I created a specialized system-wide utility subprocess called "Safe Delete", which checks whether the provided document ID is non-null (and actually exists) prior to trying the DELETE DOCUMENT node, as this node is NOT null-safe.

Thank you Mike,2nd method works for me and it seems better than forcing the user to remove all uploaded documents even they are planning to Cancel the flow.

I agree, depending on context.  I've used both before.  However there are some cases where, for example, a document is added to a row in an Editable Grid, where the grid rows themselves can be removed by a user, where i've taken special pains to come up with a method where the "remove row" control is disabled until the user removes the uploaded document on that row.