How To Fix NAA638 - Delivery date &1 of schedule line was adopted as update date

NAA638 - Overview

• Message type: E = Error

• Message class: NAA - Subsequent settlement (Purchasing)

• Message number: 638

• Message text: Delivery date &1 of schedule line was adopted as update date

What causes this issue?

The delivery date &V1& of the schedule line was adopted as the update
date.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The delivery date of the schedule line is used as the update date
(update of data from PO/delivery schedule).
In some cases, the update date is changed to the start or end date of
the arrangement validity period if the original date is not within the
arrangement validity period (e.g. as a result of a data input error).
In the case of arrangements settled periodically, if the update date
falls in a period for which settlement accounting has already been
performed, business volumes are assigned to the next period for which
settlement accounting is due. The update date is changed accordingly.
This procedure ensures realtime inclusion of business volumes during
subsequent settlement.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NAA638 - Delivery date &1 of schedule line was adopted as update date ?

  The SAP error message NAA638 indicates that the delivery date of a schedule line has been adopted as the update date. This typically occurs in the context of sales and distribution (SD) or materials management (MM) when there is a mismatch or issue with the scheduling of deliveries.
  
  Cause:
  
  Mismatch in Dates: The delivery date specified in the schedule line may not align with the expected or required dates in the system.
  System Configuration: There may be configuration settings in the SAP system that dictate how delivery dates are handled, which could lead to this message if not set correctly.
  Data Entry Errors: Incorrect data entry during the creation or modification of sales orders or purchase orders can lead to this error.
  Dependencies on Other Documents: The delivery date may be influenced by other documents (like production orders or purchase requisitions) that have not been updated or are causing conflicts.
  
  
  Solution:
  
  Check Schedule Line Dates: Review the