How To Fix XC018 - Error in data transfer to system &1 in module &2. ext. number &3

SAP Error Message - Details

• Message type: E = Error

• Message class: XC - Message Class for Core Interface

• Message number: 018

• Message text: Error in data transfer to system &1 in module &2. ext. number &3

What causes this issue?

Errors occurred in module &V1& while the system was transferring data to
the ERP System.

System Response

The data may not have been transferred, or may have been only partially
transferred.

How to fix this error?

Check the application log on the SAP APO and ERP sides to determine the
exact cause:
Copy the transaction code &V2& to the clipboard.
Open a session in the target system.
Choose <LS>Monitoring</> -> <LS>Display application log entries</> in
the C
Insert the number in the field <LS>External number</>.
Choose <LS>Execute</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message XC018 - Error in data transfer to system &1 in module &2. ext. number &3 ?

  The SAP error message XC018 indicates that there is an issue with data transfer to a specified system in a particular module. This error can occur in various contexts, such as during data uploads, interface processing, or when integrating with external systems. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  Data Format Issues: The data being transferred may not conform to the expected format or structure required by the target system or module.
  Connection Problems: There may be network issues or connectivity problems between the SAP system and the external system.
  Authorization Issues: The user or process attempting the data transfer may not have the necessary permissions to perform the operation.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external system can lead to data transfer failures.
  Data Integrity Issues: The data being transferred may contain invalid or inconsistent entries that prevent successful processing.
  System Performance: High load on the system or resource constraints can lead to timeouts or failures in data transfer.
  
  Solutions:
  
  Check Data Format: Ensure that the data being transferred is in the correct format and adheres to the specifications required by the target system.
  Verify Connectivity: Test the network connection between the SAP system and the external system to ensure that it is stable and operational.
  Review Authorizations: Check the user roles and authorizations to ensure that the user or process has the necessary permissions to perform the data transfer.
  Examine Configuration: Review the configuration settings in both the SAP system and the external system to ensure they are correctly set up for data transfer.
  Validate Data: Perform data validation checks to identify and correct any invalid or inconsistent entries in the data being transferred.
  Monitor System Performance: Check system performance metrics to identify any resource constraints or performance issues that may be affecting data transfer.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may want to check transaction codes related to data transfer, such as SM37 (Job Monitoring), SLG1 (Application Log), or ST22 (Dump Analysis).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the XC018 error.
  Logs and Traces: Review application logs and traces to gather more detailed information about the error and its context.
  Documentation: Consult the SAP documentation for the specific module or interface you are working with to understand the expected data formats and configurations.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support or consult with a technical expert who can provide further assistance based on the specific context of the error.