How To Fix EEWMSERVICE420 - Selection by (only) device category is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: EEWMSERVICE - IS-U Work Management: Service

• Message number: 420

• Message text: Selection by (only) device category is not possible

What causes this issue?

You want to select notifications or orders according to IS-U device
category. However, you have not specified any further IS-U selection
criteria. For performance reasons, this selection method is not
supported.

System Response

INCLUDE 'KEINE-VERARBEITUNG' OBJECT DOKU ID TX LANGUAGE EN

How to fix this error?

Specify additional IS-U selection criteria.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EEWMSERVICE420 - Selection by (only) device category is not possible ?

  The SAP error message EEWMSERVICE420 indicates that a selection based solely on the device category is not possible. This error typically arises in the context of SAP's Energy Data Management or similar modules where device categories are used to filter or select data.
  Cause:
  The error usually occurs due to one of the following reasons:
  
  Insufficient Selection Criteria: The system requires more than just the device category to perform the selection. If only the device category is specified without additional criteria (like location, status, or other relevant parameters), the system cannot process the request.
  Configuration Issues: There may be configuration settings in the SAP system that restrict the selection based on device categories alone.
  Data Integrity Issues: There might be issues with the data in the database, such as missing or inconsistent entries related to the device category.
  
  Solution:
  To resolve the error, consider the following steps:
  
  
  Add Additional Selection Criteria: Modify your selection criteria to include more parameters. For example, include fields such as:
  
  Device location
  Device status
  Time period
  Other relevant attributes
  
  
  
  Check Configuration Settings: Review the configuration settings in the SAP system related to device management or the specific module you are working with. Ensure that the settings allow for selections based on the device category.
  
  
  Data Validation: Check the underlying data for integrity. Ensure that the device categories are correctly assigned and that there are no missing or inconsistent records.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on how to structure your selection queries.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration or version.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide updates and patches.
  Transaction Codes: Familiarize yourself with transaction codes related to device management, such as EWM1, EWM2, or others that may be relevant to your context.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to address the EEWMSERVICE420 error effectively.