How does Mayday Balancer interact with Locked Periods?

Once you "lock" a period in Xero, we can no longer post any journal, invoice or bill as "authorised", we can only post as "draft". This is the way the Xero API has been designed, and is to protect the integrity of your Xero file.

If you need to post something from Mayday into Xero after the period is locked, you can either post it from Mayday as draft, then unlock the period in Xero and complete the posting. Or simply unlock the period in Xero, then run the posting from Mayday.

We cannot post at all in to a locked period in QBO. If you need to post something from Mayday into QBO after the period is locked, you need to simply unlock the period in QBO, then run the posting from Mayday.