We're currently working on Nintex Workflow and Nintex Form for Office 365. After a couple of months we saw our used storage in the site collection increased a lot.
When checking the SharePoint storage metrics we saw the 'wfsvc' and 'NintexFormXml' folder together contains around 500MB. When we click on this folder, several folders with a number appeared. I guess these are a kind of 'versions' of the Nintex Workflow and the Nintex Forms.
Is there a way to reduce this or maybe delete older versions of the workflows/forms?
Thanks in advance!