How To Fix AH855 - Device &1 reg. &2 period &3 - &4: conversion factor cannot be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 855

• Message text: Device &1 reg. &2 period &3 - &4: conversion factor cannot be determined

What causes this issue?

Internal error:
No entry was found in internal table UL_MVCF-EXTRACT_IEGAS for the
specified interval and the specfied device/register. This entry is
required to determine the conversion factor.

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?

INCLUDE ISU_SAP OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH855 - Device &1 reg. &2 period &3 - &4: conversion factor cannot be determined ?

  The SAP error message AH855 indicates that there is an issue with the conversion factor for a specific device and registration period. This error typically arises in the context of SAP IS-U (Industry Solution for Utilities) when dealing with device management and meter readings.
  Cause:
  The error message AH855 can occur due to several reasons:
  
  Missing Conversion Factors: The conversion factors for the specified device type or measurement point may not be defined in the system.
  Incorrect Configuration: The configuration settings for the device or the measurement point may be incorrect or incomplete.
  Data Inconsistencies: There may be inconsistencies in the master data related to the device, such as missing or incorrect entries in the device master record.
  Period Issues: The specified period may not have valid data or may not be set up correctly in the system.
  
  Solution:
  To resolve the AH855 error, you can take the following steps:
  
  
  Check Device Master Data:
  
  Go to the device master record and ensure that all necessary fields are filled out correctly, including the conversion factors.
  Verify that the device type is correctly assigned and that it has the appropriate conversion factors defined.
  
  
  
  Define Conversion Factors:
  
  If conversion factors are missing, you can define them in the system. This is typically done in the configuration settings for the device type or measurement point.
  Use transaction codes like EAM1 (for device types) or EAM2 (for measurement points) to check and maintain conversion factors.
  
  
  
  Review Configuration Settings:
  
  Check the configuration settings for the relevant device type and ensure that all necessary parameters are set correctly.
  Ensure that the measurement point is correctly linked to the device and that the settings are consistent.
  
  
  
  Check Period Settings:
  
  Verify that the specified period is valid and that there are no gaps in the data for that period.
  Ensure that the period is correctly defined in the system and that it aligns with the device's reading schedule.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on handling device management and conversion factors.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as EAM1, EAM2, EAM3, and EAM4 for managing device types and measurement points.
  SAP Notes: Check for any SAP Notes related to the AH855 error message for additional insights or patches that may address the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed and resolved.
  
  By following these steps, you should be able to identify and resolve the cause of the AH855 error in your SAP system.