Some recurring data uploads are posted into the initial time period. If you close "all" prior time periods, you could block yourself/Datalink from uploading into the desired period.
In our case of locking the previous fiscal year, we versioned
all tables effective start of the new fiscal year and, where needed, adjusted Datalink connectors to target the starting period of the
new fiscal year instead of the initial period of the CT project.
Last year, we tried resetting the initial time of the CT project, but it caused more headache than versioning everything as mentioned above.
Versioning and adjusting Datalink took approximately three solid (very boring) work days....for a CT project that's a little more than 3 years old.
I strongly recommend closing periods
combined with versioning as a best practice when transitioning to a new fiscal year.