How To Fix EH302 - AMI and non-AMI devices cannot be selected at the same time

SAP Error Message - Details

• Message type: E = Error

• Message class: EH - Messasge class for disconnection and reconnection

• Message number: 302

• Message text: AMI and non-AMI devices cannot be selected at the same time

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message EH302 - AMI and non-AMI devices cannot be selected at the same time ?

  The SAP error message EH302 indicates that there is an issue with the selection of devices in the context of Advanced Metering Infrastructure (AMI) and non-AMI devices. This error typically arises when a user attempts to select both AMI and non-AMI devices in a single operation, which is not allowed due to the differing data structures and processing requirements for these two types of devices.
  Cause:
  
  Mixed Device Selection: The primary cause of this error is the attempt to process or select both AMI and non-AMI devices simultaneously. The system is designed to handle these two categories separately due to their different functionalities and data handling processes.
  Configuration Issues: There may be configuration settings in the SAP system that are not properly set up to distinguish between AMI and non-AMI devices.
  User Input Error: The user may have inadvertently selected devices from both categories without realizing it.
  
  Solution:
  
  Separate Device Selection: Ensure that you are selecting either AMI devices or non-AMI devices, but not both at the same time. Review your selection criteria and make sure they are consistent.
  Check Configuration: Review the configuration settings in the SAP system to ensure that the distinction between AMI and non-AMI devices is correctly implemented. This may involve checking the device types and their classifications.
  User Training: If this error is occurring frequently, consider providing training or guidance to users on how to properly select devices in the system to avoid this error.
  Error Handling: Implement error handling in your processes to catch this error early and provide users with clear instructions on how to resolve it.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on device management and the handling of AMI and non-AMI devices.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional guidance on device selection.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions or workarounds may be shared.
  
  By following these steps, you should be able to resolve the EH302 error and ensure proper device selection in your SAP system.