Message type: E = Error
Message class:  OD - IS-Oil: TSW Traders' and Schedulers' Workbench messages 
Message number: 115
Message text: Nomination &1 item &2 has already been completed.
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The SAP error message OD115 indicates that a nomination item has already been completed, which means that the system is preventing further processing on that particular nomination. This error typically occurs in the context of the SAP Oil and Gas (SAP O&G) module, particularly when dealing with nominations for the transportation of oil and gas products.
Cause: Nomination Status: The nomination item you are trying to process has already been marked as completed in the system. This could happen if the nomination has already been finalized or if it has been processed in a previous step. Duplicate Processing: There may be an attempt to reprocess or modify a nomination that has already been completed, leading to this error. Workflow Issues: If there are issues in the workflow or if the nomination was processed by another user or system, it may lead to this error.
Solution: Check Nomination Status: Verify the status of the nomination item in
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