Message type: E = Error
Message class:  OD - IS-Oil: TSW Traders' and Schedulers' Workbench messages 
Message number: 386
Message text: Scheduled date is not within date period of contract/order item
The scheduled date of the nomination item is not within the date period
specified on the TSW Details pop-up of the referenced contract or order
item.
This check can be suppressed by switching off the date check in the TSW
nomination customizing transaction O5TT.
The system prevents you to enter a nomination date which does not lie
within the date range of the referenced order or contract item.
You need to enter  a scheduled date which lies in between the date range
of the document item.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message OD386, which states "Scheduled date is not within date period of contract/order item," typically occurs when there is a mismatch between the scheduled date of a delivery or service and the validity period of the associated contract or order item. This error is common in scenarios involving sales orders, purchase orders, or service contracts.
Cause: Scheduled Date Outside Validity Period: The scheduled date for the delivery or service is set outside the start and end dates defined in the contract or order item. Contract/Order Item Validity: The contract or order item may have specific validity dates, and the scheduled date does not fall within this range. Incorrect Date Entry: There may have been an error in entering the scheduled date, leading to it being outside the allowed range. Contract Changes: If the contract or order item was modified (e.g., dates were changed), the scheduled date may no longer be valid.
Solution: Check Scheduled
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