How To Fix IWO_BAPI2127 - Only one object list per call can be processed

SAP Error Message - Details

• Message type: E = Error

• Message class: IWO_BAPI2 - Messages for the PS/CS BAPI Process Control

• Message number: 127

• Message text: Only one object list per call can be processed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IWO_BAPI2127 - Only one object list per call can be processed ?

  The SAP error message "IWO_BAPI2127: Only one object list per call can be processed" typically occurs when you are trying to process multiple object lists in a single call to a BAPI (Business Application Programming Interface) that only supports one object list at a time. This is common in scenarios where you are working with BAPIs related to maintenance orders, notifications, or other object-related transactions.
  Cause:
  The error is caused by attempting to pass multiple object lists (e.g., multiple maintenance orders or notifications) in a single BAPI call. The BAPI is designed to handle only one object list at a time, and when it detects more than one, it raises this error.
  Solution:
  To resolve this error, you should ensure that you are only passing one object list per BAPI call. Here are the steps you can take:
  
  
  Check Your Input Data: Review the data you are passing to the BAPI. Ensure that you are not inadvertently including multiple object lists.
  
  
  Split the Calls: If you have multiple object lists that need to be processed, you will need to split them into separate calls. For example, if you have a list of maintenance orders, process them one at a time or in batches of one.
  
  
  Use Loops: If you are working with a program or script, implement a loop that iterates through your object list and calls the BAPI for each individual object.
  
  
  Review BAPI Documentation: Check the SAP documentation for the specific BAPI you are using to understand its limitations and requirements regarding object lists.
  
  
  Error Handling: Implement error handling in your code to catch this specific error and log it for further analysis.
  
  
  Related Information:
  
  BAPI Documentation: Refer to the SAP Help Portal or the specific BAPI documentation for details on the parameters and expected input formats.
  SAP Notes: Check for any relevant SAP Notes that might address this error or provide additional context or solutions.
  Debugging: If you have access to the SAP system, you can use transaction codes like SE37 (Function Module) or SE80 (Object Navigator) to debug the BAPI and see how it processes the input data.
  
  By following these steps, you should be able to resolve the "IWO_BAPI2127" error and successfully process your object lists in SAP.