Message type: E = Error
Message class:  FM_BP_BWRET - Messages for FM Budget Preparation Retraction 
Message number: 045
Message text: Entry into Field DOC_DAT Not Allowed
You must enter the document date on the plan data transfer selection
screen.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FM_BP_BWRET045: Entry into Field DOC_DAT Not Allowed typically occurs in the context of financial document processing, particularly when dealing with budgetary control or financial management in SAP. This error indicates that there is an issue with the date field (DOC_DAT) in a financial document, which is not allowing the entry of a value. Causes: Invalid Date Format: The date entered may not conform to the expected format or may be outside the permissible range. Document Type Restrictions: Certain document types may have restrictions on the dates that can be entered, especially if they are related to specific fiscal periods. Fiscal Year Settings: The fiscal year settings in the system may restrict the entry of documents to certain periods. Budget Availability Control: If the budget availability control is active, it may prevent entries that do not align with the budget periods. Authorization Issues: The user may not have the necessary authorizations to enter
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