Message type: E = Error
Message class:  /ATL/ASSET -  
Message number: 090
Message text: Period (&) is in the past and is not allowed
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The SAP error message /ATL/ASSET090 Period (&) is in the past and is not allowed typically occurs in the context of asset accounting when you attempt to post a transaction for a period that has already closed. This is a common issue in financial systems where periods are defined for accounting entries, and once a period is closed, no further postings are allowed for that period.
Cause: Closed Period: The most common cause of this error is that the period you are trying to post to has been closed in the system. This means that the financial books for that period are finalized, and no further changes or postings can be made. Configuration Settings: The system may have been configured to restrict postings to past periods to maintain the integrity of financial reporting. User Authorization: In some cases, the user may not have the necessary authorization to post to prior periods, even if the
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