Closing Accounting Periods - Invoice/Posting dates

Closing Accounting Periods - Invoice/Posting dates

Hi,

I have seen in another thread but I'm unsure on how the 'transaction locking' works with regards to new and old transactions. 
When producing monthly accounts if I close December 24 accounts on 8th Jan 25 will transaction locking prevent me from posting new documents into December. 
I feel the system needs a document date and then a posting date.
If a supplier invoice is received dated 10th Dec 24 but due to an admin error is not received until 15th Jan 25. I would need to post it with a document date as 10th Dec 24 but the posting date of the document would be 15th Jan 25 and this would result in the document being posted into the January accounting period.

Please can you advise if this is achievable?

Thanks,

Emma