How To Fix CN686 - Delivery date for a purchase requisition is unrealistic -> see log

CN686 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 686

• Message text: Delivery date for a purchase requisition is unrealistic -> see log

What causes this issue?

You have scheduled a network.

System Response

The delivery date for at least one purchase requisition is unrealistic.
In order to keep this delivery date, the purchase requisition would
have to be released in the past. The release date can be today at the
earliest.

How to fix this error?

Call up the scheduling log and check the dates of the relevant
components and their activities.

Error message extract from SAP system. Copyright SAP SE.

CN686 - Details

• The SAP error message CN686 indicates that the delivery date specified for a purchase requisition is considered unrealistic. This can occur for various reasons, such as the delivery date being too far in the future, not aligning with the production schedule, or being outside of acceptable lead times.
  Causes:
  
  Lead Time Issues: The delivery date may not account for the necessary lead time required for procurement or production.
  Calendar Settings: The delivery date may fall on a non-working day or outside of the defined working calendar.
  Material Availability: The material may not be available for the requested delivery date due to stock levels or production schedules.
  Incorrect Date Entry: The date may have been entered incorrectly, either manually or through a system error.
  Vendor Constraints: The vendor may have limitations on delivery dates based on their own production or shipping schedules.
  
  Solutions:
  
  Review and Adjust Delivery Date: Check the delivery date in the purchase requisition and adjust it