How To Fix RU401 - There are no subsystem confirmations

RU401 - Overview

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 401

• Message text: There are no subsystem confirmations

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

System Response

The database table RUECK in which all subsystem confirmations are
temporarily stored before being processed contains no entries.

How to fix this error?

Start the processing of subsystem confirmations again at a later time.

Error message extract from SAP system. Copyright SAP SE.

RU401 - Details

• The SAP error message RU401 ("There are no subsystem confirmations") typically occurs in the context of production planning and control, particularly when dealing with confirmations in the production process. This error indicates that the system is unable to find any confirmations for a particular production order or operation in the relevant subsystem.
  Causes:
  
  No Confirmations Entered: The most straightforward cause is that no confirmations have been entered for the production order or operation in question.
  Incorrect Order Status: The production order may not be in a status that allows for confirmations to be processed.
  Missing Subsystem Integration: If the system is integrated with other subsystems (like MES or other production systems), there may be issues with the integration that prevent confirmations from being recorded.
  Data Inconsistencies: There may be inconsistencies in the data, such as missing entries in the database or issues with the configuration of the production order.
  Authorization Issues: The user may not have