You can send the Vendor a new invite by pressing the + Vendor button from the Vendors page (not on the “back” of the Vendor card) to request that your Vendor complete a new onboarding process. Once the Vendor starts the new onboarding process, they will go back to IN PROCESS status until the new onboarding process has been completed.
When you send your Vendor a new invite, the resulting documents will appear on that same Vendor's card, provided the Vendor accepts that invite with the same account. If the Vendor creates a brand new business to accept the invite, then the new documents will be shown on the new Vendor's card and not on the original Vendor's card.
If you'd like to replace the Master Contract with a document signed outside of Liquid or to extend the Master Contact end date without changing the documents, you can do that from the the “back” of the Vendor card (this extension option is only available when the Master Contract has not expired yet).