Message type: E = Error
Message class:  VO - W&S: Rough workload forecast + picking wave 
Message number: 014
Message text: Error & while writing a group item
One or several records were already found in the database.
It was not possible to create the picking wave.
This is probably sue to an error in an ABAP program. Please inform your
systems administrator.
Error message extract from SAP system. Copyright SAP SE.
SAP Error Message: VO014 - Error & while writing a group item
Cause: The error message VO014 typically occurs during the processing of group items in sales documents (such as sales orders, deliveries, billing documents) when there is an inconsistency or problem related to the group item data. The ampersand (&) in the message is a placeholder for a more specific error detail or code. Common causes include: Inconsistent or incomplete group item data: For example, missing mandatory fields or incorrect item references. Incorrect assignment of group items: Group items must be correctly linked to their sub-items; if this linkage is broken or invalid, the error can occur. Custom enhancements or user exits: If custom code modifies group item processing incorrectly. Data inconsistencies in the database: Corrupted or inconsistent data in sales document tables (e.g., VBAK, VBAP). Authorization issues: User may lack necessary permissions to process group items.
Solution: To resolve the VO014 error, follow these steps: Check the detailed error message: The
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