How To Fix OE556 - SAVE op error: & unknown entries on & posting table, key= & &

SAP Error Message - Details

• Message type: E = Error

• Message class: OE - IS-Oil: ITA/TPI messages

• Message number: 556

• Message text: SAVE op error: & unknown entries on & posting table, key= & &

What causes this issue?

There are &V1& entries with unidentified operation codes on the &V2&
posting table. First order key is &V3&. Second order key is &V4&.

System Response

After detection of the error, the following occurred:
Changes already made to the database during the current saving process
were cancelled
The change to the database which caused the error was cancelled
Any changes still to be carried out during the current saving process
were cancelled.

How to fix this error?

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OE556 - SAVE op error: & unknown entries on & posting table, key= & & ?

  The SAP error message OE556, which states "SAVE op error: & unknown entries on & posting table, key= & &," typically occurs during the posting of documents in the SAP system. This error indicates that there are unknown or invalid entries in the specified posting table, which prevents the successful saving of the operation.
  Causes:
  
  Data Integrity Issues: The error may arise due to inconsistencies or corruption in the data within the posting table.
  Missing Master Data: The entries being posted may reference master data (like accounts, cost centers, etc.) that do not exist or are not properly configured in the system.
  Configuration Errors: Incorrect configuration settings in the relevant modules (like FI, CO, etc.) can lead to this error.
  Custom Code Issues: If there are custom enhancements or user exits that manipulate the posting process, they may introduce errors.
  Transport Issues: If recent transports have been made, they may have introduced inconsistencies in the system.
  
  Solutions:
  
  Check the Posting Table: Identify the specific posting table mentioned in the error message and check for any inconsistencies or missing entries.
  Verify Master Data: Ensure that all necessary master data is present and correctly configured. This includes checking accounts, cost centers, and any other relevant entities.
  Review Configuration: Go through the configuration settings in the relevant modules to ensure they are set up correctly.
  Debugging: If you have access to debugging tools, you can trace the process to identify where the error is occurring. This may involve checking the code in user exits or enhancements.
  Consult Logs: Check the application logs (transaction SLG1) for more detailed information about the error and any related issues.
  Transport Review: If the issue arose after a transport, review the transport logs and ensure that all necessary objects were transported correctly.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), or SE80 (Object Navigator) to investigate the tables and data involved.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to the specific module you are working with (e.g., FI, CO) for additional troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis or technical team for further investigation.