Message type: E = Error
Message class:  FAGL_FCC - Messages for Closing Cockpit 
Message number: 018
Message text: Changes not saved; data contains errors
The dataset you want to save contains errors.
Data with errors cannot be written.
Review the reported errors.
Correct the errors before you attempt to save the data again.
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 FAGL_FCC018, which states "Changes not saved; data contains errors," typically occurs in the context of the Financial Accounting (FI) module, particularly when dealing with General Ledger (G/L) accounts or during the posting of financial documents. This error indicates that there are issues with the data being processed, which prevents the system from saving the changes. Causes: Data Validation Errors: The data entered may not meet the required validation rules set in the system. This could include incorrect account numbers, missing mandatory fields, or invalid data formats.
Configuration Issues: There may be configuration settings in the G/L account or in the financial document that are not aligned with the data being entered. Authorization Issues: The user may not have the necessary authorizations to make changes to certain accounts or documents. Inconsistent Data: There may be inconsistencies in the data being processed, such as mismatched currencies, incorrect posting periods, or invalid cost centers. Technical
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