How To Fix DMC_IU123 - Different Release for comp. &1; upgrade buffer: &2, receiver system: &3

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_IU - DMC: Messages for Integrated Upgrade

• Message number: 123

• Message text: Different Release for comp. &1; upgrade buffer: &2, receiver system: &3

What causes this issue?

The release level of component &V1& in the receiver system is different
from the release level of this component in the upgrade buffer.
Release in upgrade buffer: &V2&
Release im receiver system: &V3&

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Find out if the upgrade ID you used was chosen correctly. If not, choose
another (compatible) upgrade ID.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_IU123 - Different Release for comp. &1; upgrade buffer: &2, receiver system: &3 ?

  The SAP error message DMC_IU123 indicates that there is a version mismatch between the upgrade buffer and the receiver system during a system upgrade or migration process. This typically occurs when the components of the source system and the target system (receiver system) are not aligned in terms of their software release versions.
  Cause:
  
  Version Mismatch: The most common cause of this error is that the upgrade buffer (which contains the changes and updates to be applied) is created from a source system that has a different release version than the target system.
  Inconsistent System Landscape: If the systems in your landscape (development, quality assurance, production) are not properly synchronized in terms of their software versions, this error can occur.
  Incorrect Configuration: There may be configuration issues in the transport management system (TMS) or the system landscape configuration.
  
  Solution:
  
  Check System Versions: Verify the release versions of both the source and target systems. Ensure that they are compatible and that the target system is on the correct version to receive the upgrade.
  Upgrade the Target System: If the target system is on an older version, consider upgrading it to match the source system's version.
  Recreate the Upgrade Buffer: If the versions are correct but the error persists, you may need to recreate the upgrade buffer. This can involve re-running the upgrade process or using the appropriate tools to generate a new buffer.
  Review Transport Routes: Ensure that the transport routes and configurations in the TMS are correctly set up and that there are no inconsistencies in the transport layers.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  SAP Notes: Look for specific SAP Notes related to the DMC_IU123 error for detailed troubleshooting steps and recommendations.
  Upgrade Documentation: Review the official SAP upgrade documentation for your specific version to ensure that all prerequisites and steps are followed correctly.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP Support for further assistance.