How To Fix X4523 - An error occurred for suboperation &1 / &2 of a parallel sequence

X4523 - Overview

• Message type: E = Error

• Message class: X4 - APO Core Interface: Interfaces for Manufacturing Orders

• Message number: 523

• Message text: An error occurred for suboperation &1 / &2 of a parallel sequence

What causes this issue?

An error occurred during the processing of suboperation &V2& of
operation &V1& for a parallel sequence. The sequence concerned is
number &V3&. Note that no sequence numbers can be specified in this
message for any operations or parallel sequences that have been
inserted into the order by hand.

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?

See the subsequent message in the application log to determine the
cause of the error.
Then, rectify the cause of the error.

Procedure for System Administrators

Information:
The operation concerned has the counter (APLZL) &V4&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message X4523 - An error occurred for suboperation &1 / &2 of a parallel sequence ?

  The SAP error message X4523 indicates that there was an issue with a suboperation in a parallel sequence. This error typically arises in scenarios where multiple operations are being executed simultaneously, and one of those operations has failed or encountered an error.
  
  Cause:
  
  Suboperation Failure: One of the suboperations in the parallel sequence has failed due to various reasons such as data inconsistencies, missing data, or incorrect configurations.
  Resource Conflicts: There may be conflicts in resource allocation, such as locks on database entries or insufficient system resources.
  
  Configuration Issues: Incorrect settings in the parallel processing configuration can lead to errors.
  Timeouts: If a suboperation takes too long to execute, it may time out and cause the entire sequence to fail.
  Dependency Issues: If one suboperation depends on the successful completion of another, and that operation fails, it can lead to this error.
  
  
  Solution:
  
  Check Logs: Review the application logs and system logs to identify the specific suboperation that