How To Fix OB502 - This purchase order can only be processed in the new transaction

SAP Error Message - Details

• Message type: E = Error

• Message class: OB - IS-OIL Downstream TDP messages

• Message number: 502

• Message text: This purchase order can only be processed in the new transaction

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OB502 - This purchase order can only be processed in the new transaction ?

  The SAP error message OB502, which states "This purchase order can only be processed in the new transaction," typically occurs when you are trying to process a purchase order (PO) that has been created or modified in a way that requires the use of a new transaction code or interface in SAP.
  Cause:
  
  Transaction Code Change: The purchase order may have been created or modified in a newer version of the transaction that is not compatible with the older transaction code you are using.
  System Upgrade: If your SAP system has been upgraded, certain functionalities may have changed, and older transaction codes may no longer support the processing of certain documents.
  Configuration Settings: The system configuration may have been altered, leading to the requirement of using a new transaction for specific types of purchase orders.
  
  Solution:
  
  Use the New Transaction: Identify the new transaction code that corresponds to the functionality you are trying to access. This may involve checking with your SAP administrator or consulting the SAP documentation.
  Check for Updates: Ensure that you are using the latest version of the SAP GUI and that your system is up to date with the latest patches and updates.
  Consult Documentation: Review the SAP Help documentation or release notes for any changes related to purchase order processing that may have been introduced in recent updates.
  Training and Support: If you are unsure about the new transaction or how to process the purchase order, consider seeking training or support from your SAP support team or consulting resources.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the relevant transaction codes for purchase order processing, such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), and ME23N (Display Purchase Order).
  SAP Notes: Check SAP Notes for any known issues or fixes related to the OB502 error message. SAP Notes can provide insights into specific problems and their resolutions.
  User Roles and Authorizations: Ensure that your user role has the necessary authorizations to access the new transaction codes.
  
  If the issue persists after trying the above solutions, it may be beneficial to escalate the matter to your SAP support team for further investigation.