Message type: E = Error
Message class:  CNVA_COA -  
Message number: 004
Message text: Node & could not be marked
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
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The SAP error message CNVA_COA004 typically indicates that a node in a project structure (such as a work breakdown structure or WBS element) could not be marked for a specific operation, often related to project management or controlling activities. This error can arise due to various reasons, and understanding the cause is essential for finding a solution. Possible Causes: Node Status: The node may be in a status that does not allow it to be marked. For example, if the node is already completed or locked, it cannot be marked for further processing. Authorization Issues: The user may not have the necessary authorizations to perform the marking operation on the specified node. Dependencies: There may be dependencies or relationships with other nodes that prevent the marking of the current node. Data Integrity Issues: There could be inconsistencies or errors in the underlying data that prevent the operation from being completed. Configuration Settings: Certain configuration settings in
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