How To Fix OT421 - Reservation deleted

OT421 - Overview

• Message type: E = Error

• Message class: OT - SAP Online Correction Support (SOCS)

• Message number: 421

• Message text: Reservation deleted

What causes this issue?

<ZH>Package Delivery Event</>
<ZK>Software component</>,,<ZK>PAKID</>,,&v1&
<ZK>Delivery event</>,,<ZK>ALEID</>,,&v2&

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

OT421 - Details

• The SAP error message OT421, which states "Reservation deleted," typically occurs when a reservation that was previously created in the system has been deleted. This can happen for various reasons, such as changes in inventory management, adjustments in production planning, or manual deletions by users.
  Causes:
  
  Manual Deletion: A user may have manually deleted the reservation through the SAP interface.
  Automatic Deletion: The system may have automatically deleted the reservation due to changes in the underlying data, such as changes in the material master or inventory levels.
  Data Consistency Issues: There may be inconsistencies in the data that lead to the deletion of the reservation.
  System Configuration: Certain configurations in the system may lead to the automatic deletion of reservations under specific conditions.
  
  Solutions:
  
  Check Reservation Status: Verify the status of the reservation in the system. You can do this by using transaction codes like MB22 (Change Reservation) or MB23 (Display Reservation) to see if the reservation