Message type: E = Error
Message class:  FMFG_MM01 - Message id for Multi funding 
Message number: 023
Message text: Item &1: Period of performance is out of range compared to the PR
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The SAP error message FMFG_MM01023 indicates that there is a mismatch between the period of performance for a specific item and the Purchase Requisition (PR) in the system. This typically occurs in the context of Funds Management (FM) and Material Management (MM) when the system checks the validity of the period for which the funds are allocated against the period specified in the PR.
Cause: Period of Performance Mismatch: The period of performance defined for the item does not align with the fiscal year or period defined in the Purchase Requisition. Incorrect Dates: The start and end dates for the period of performance may be set incorrectly, either in the PR or in the related financial documents. Fiscal Year Variance: The fiscal year settings in the system may not match the dates specified in the PR. Document Status: The status of the PR may not allow for processing in the specified period.
Solution: Check the Period of
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