Message type: E = Error
Message class:  ARUN_ITA_MESSAGES - Message class for ARun ITA 
Message number: 001
Message text: Cannot &3 future stock for order/item &1
You cannot release future stock (such as purchase orders and
confirmations).
You can release only physical stock which can be either batch or storage
location stock.
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 ARUN_ITA_MESSAGES001 with the description "Cannot &3 future stock for order/item &1" typically indicates that there is an issue related to stock availability for a specific order or item in the future. This error can arise in various scenarios, such as during the processing of sales orders, production orders, or inventory management.
Cause: Future Stock Availability: The error suggests that the system is unable to confirm future stock availability for the specified order/item. This could be due to: No planned receipts (e.g., purchase orders, production orders) are available to fulfill the demand. The stock is not available in the required quantity for the specified date. The item may be subject to restrictions or settings that prevent future stock from being allocated.
Configuration Issues: There may be configuration settings in the material master or in the planning parameters that affect how future stock is calculated or displayed. Planning Horizon: The planning horizon may not be
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