To avoid back date receipt and accrual entries posting even period is opened

Summary:

1) If we close the AP period, could we avoid accrual entries from being generated and posted successfully?

2) any setup we could perform to avoid backdate receipts?

Content (please ensure you mask any confidential information):

We understood that accrual entries are accounting based on transaction date, if the receipt is performed in Jan, it will be accounted in Jan even the system date is already February. Yet if we allowed back date receipt and accounting, especially when the GL period is not ready to closed yet so the posting is still successful, it will be quite inconvenient for users for reconciliation. We would like to verify on below -