Message type: E = Error
Message class:  KZ - Cost Object Repetitive Mfg / Process Mfg 
Message number: 813
Message text: Position the cursor at the point where you want to insert the item
The cursor is not correctly positioned.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Position the cursor on the line before which you want to insert the
item, and choose the function again.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message KZ813, which states "Position the cursor at the point where you want to insert the item," typically occurs when you are trying to insert a new line or item in a list or table within an SAP transaction, but the cursor is not positioned correctly.
Cause: Incorrect Cursor Position: The most common cause of this error is that the cursor is not placed in a valid position where a new item can be inserted. This can happen if you are trying to add a new line in a table or list but have not clicked on the appropriate row or cell. Read-Only Mode: The screen or transaction you are working in may be in a read-only mode, preventing any modifications. User Permissions: You may not have the necessary permissions to insert items in the specific transaction or module.
Solution: Position the Cursor Correctly: Click on the row or cell where you want
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