Hi Hunter,

Depending on how Laserfiche is ingesting these invoices, there are a couple different ways to ultimately do the same thing. I'm guessing you're using Quick Fields to capture that date, as a user would simply enter the date in the correct format if they were doing it manually. Regardless, editing the token that contains that 10DEC2019 value should be able to handle this. Screenshot below:

All this screenshot shows is the token editor, and that it can convert your string to an acceptable date token. You can access this token editor in Quick Fields or in Workflow. I can get more specific if you can provide some more details on where exactly you're capturing this token.

EDIT: You mentioned Workflow in the title of your post - my mistake. When you go to put the token holding this value into an 'Assign Field Values' activity or wherever you're putting it, right-click the token and choose 'Token Editor.' From there, my screenshot should be able to help.