There is a periodic posting with date &1 posting cannot be done for &2

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

In the periodic accrual posting run of the Accrual Engine (transaction
ACEPOSTINGRUN),it is possible to skip periods, i.e. to execute the
periodic accrual posting run with a posting date that is in a future
period. This might lead to situation that accrual amounts are doubled.
For example:
Accruals are calculated for whole year 2019 with amounts 1000 EUR every
month. You skip first three periods and post on 30.04.2019, system will
calculate and post 4000 EUR.
Then you decide to post on 28.02.2019, engine will calculate and post
2000 EUR. Now we have in total 6000 EUR posted. This issue can be
corrected if you run posting in April or in following periods, but if
not then double amount will remain in the system.

How to fix this error?

If you still want to post in past, amount on 30.04.2019 should be
reversed, and total amount on that date should be 0.
A reversal of accrual postings can be performed either with transaction
FB08 or F.80.
As an alternative to a reversal, it is also possible to perform an
inverse posting using transaction ACACTREE02 (in case of Manual
Accruals) or POACTREE03 (in case of Purchase Order Accruals): In the tab
"Postings" there is an icon "Cancel", mark a posting and press this
icon/button. This will trigger an inverse posting, i.e. a posting with
opposite sign. Be careful to press this icon only once, because the
inverse posting is "just" a new posting with opposite sign.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.