Posting period & & is not open

What causes this issue?

Period &V1& of fiscal year &V2& is <ZH>not</> open for posting for the
variant of posting period &V4&.

System Response

You <ZH>cannot</> continue processing.

How to fix this error?

There are several possible causes for the error. To correct the error,
proceed as follows:
Check whether the posting date was entered correctly. The system uses
this date to determine the posting period.
Check whether the required posting period is open for posting for the
variant of posting period &V4& and account type &V3&. Make sure that the
period is open for posting.
To do this, specify a period interval in which the required period for
the variant of posting period &V4& and account type &V3& is contained.
IF &[SWITCH]S4H_DOCU_CLOUD& = 'X'.
You make these settings in the app <LS>Manage Posting Periods</>.
ELSE.
You make these settings in Customizing for <LS>Financial Accounting</>,
under <LS>Financial Accounting Global Settings -> Ledgers -> Fiscal Year
and Posting Periods - > Posting Periods ->
<DS:SIMG.FAGL_V_T001B_COFI_DC>Open and Close Posting Periods</>.</>
ENDIF.

Error message extract from SAP system. Copyright SAP SE.