How To Fix XC527 - Unknown error during retransfer to SAP APO

XC527 - Overview

• Message type: E = Error

• Message class: XC - Message Class for Core Interface

• Message number: 527

• Message text: Unknown error during retransfer to SAP APO

What causes this issue?

An error occurred in the retransfer of objects to SAP APO.

System Response

The retransfer is terminated.

How to fix this error?

Check additional messages in the postprocessing log and in the
application log in the ERP system.

Error message extract from SAP system. Copyright SAP SE.

XC527 - Details

• The SAP error message XC527, which indicates an "Unknown error during retransfer to SAP APO," typically arises in the context of data transfer between SAP ERP and SAP Advanced Planning and Optimization (APO) systems. This error can occur due to various reasons, including configuration issues, data inconsistencies, or communication problems between the systems.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies in the data being transferred, such as missing or incorrect master data (e.g., materials, vendors, etc.).
  
  Configuration Issues: Incorrect settings in the integration model or in the CIF (Core Interface) configuration can lead to errors during data transfer.
  Network Issues: Communication problems between the SAP ERP and APO systems, such as network outages or firewall restrictions, can cause transfer failures.
  Authorization Issues: The user or system may lack the necessary authorizations to perform the transfer.
  System Performance: High load on the system or performance issues can lead to timeouts or failures during data transfer.
  APO System