Message type: E = Error
Message class:  ICC_FI_CN - Für die Meldungen extern vornum. Belege 
Message number: 008
Message text: Reference posting document &2 blocked by user &1
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The SAP error message ICC_FI_CN008 indicates that a reference posting document is blocked by a specific user. This typically occurs in the context of financial transactions or document postings within the SAP system, particularly in the area of Controlling (CO) or Financial Accounting (FI).
Cause: The error message is triggered when a user attempts to reference a document that is currently locked by another user. This locking mechanism is in place to prevent concurrent modifications that could lead to data inconsistencies. The document could be blocked for various reasons, such as: User Lock: The document is being edited or processed by another user. Transaction in Progress: A transaction related to the document is still ongoing. System Lock: The system may have a lock due to a background job or a batch process that is currently running.
Solution: To resolve this issue, you can take the following steps: Identify the Blocking User: Check who is currently locking the document.
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