Source: Via "Linked Accounts" inside LodgeiT Account page https://go.lodgeit.net.au/account
Error: OAuth code is missing
Guidance:
Step 1: Try to unlink the QuickBooks account from LodgeiT account page https://go.lodgeit.net.au/account (see the Unlink marked with red)
Step 2: Press "Sign in with Intuit" again.
Step 3: Sign out from LodgeiT
Step 4: Sign-in via main page, https://go.lodgeit.net.au/signin , select "Sign in with Intuit"