How To Fix BM403 - Specify a valid temperature unit

SAP Error Message - Details

• Message type: E = Error

• Message class: BM - Development class BZME - units of measure

• Message number: 403

• Message text: Specify a valid temperature unit

What causes this issue?

The unit which you entered is not a temperature unit.

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?

Please check your entry. You can display valid entries with
(F4).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BM403 - Specify a valid temperature unit ?

  The SAP error message BM403 "Specify a valid temperature unit" typically occurs in the context of handling temperature data in SAP, particularly in modules related to logistics, production, or quality management where temperature measurements are relevant.
  Cause:
  The error is triggered when the system expects a valid temperature unit (such as Celsius, Fahrenheit, or Kelvin) but receives an invalid or empty value instead. This can happen due to:
  
  Incorrect Configuration: The temperature unit may not be properly configured in the system settings.
  Data Entry Error: Users may have entered an invalid temperature unit in a transaction or data entry screen.
  Missing Master Data: The relevant master data (like material master or equipment master) may not have a defined temperature unit.
  Custom Development: If there are custom programs or enhancements, they may not handle temperature units correctly.
  
  Solution:
  To resolve the BM403 error, you can take the following steps:
  
  
  Check Input Values: Ensure that the temperature unit is correctly entered in the relevant fields. Valid units typically include "C" for Celsius, "F" for Fahrenheit, or "K" for Kelvin.
  
  
  Review Configuration:
  
  Go to the relevant configuration settings in SAP (e.g., SPRO) and check the settings for temperature units.
  Ensure that the temperature units are defined and active in the system.
  
  
  
  Master Data Review:
  
  Check the master data for the materials or equipment involved in the transaction. Ensure that the temperature unit is specified correctly.
  If necessary, update the master data to include a valid temperature unit.
  
  
  
  Custom Code Review: If there are custom developments, review the code to ensure that it correctly handles temperature units and does not allow invalid entries.
  
  
  Consult Documentation: Refer to SAP documentation or help files for specific guidance on handling temperature units in the context of your SAP module.
  
  
  Testing: After making changes, perform tests to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Look for discussions in SAP community forums where other users may have encountered and resolved similar issues.
  Training: If this error is common among users, consider providing training on proper data entry and configuration practices related to temperature units.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to prevent it from occurring in the future.