How To Fix AH021 - From-measured pressure is zero

AH021 - Overview

• Message type: E = Error

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

• Message number: 021

• Message text: From-measured pressure is zero

What causes this issue?

The zone start cannot be zero. Only the first zone can be set to 0.

System Response

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

AH021 - Details

• The SAP error message "AH021 From-measured pressure is zero" typically relates to issues in the context of process control or measurement in SAP systems, particularly in modules dealing with process industries or manufacturing. This error indicates that the system is receiving a zero value for the measured pressure from a sensor or input device, which is unexpected and can lead to process disruptions.
  Causes:
  
  Sensor Malfunction: The pressure sensor may be faulty or damaged, leading to incorrect readings.
  Calibration Issues: The sensor may not be properly calibrated, resulting in inaccurate measurements.
  Connection Problems: There could be issues with the wiring or connections between the sensor and the SAP system, causing a failure to transmit the correct data.
  System Configuration: Incorrect configuration settings in the SAP system related to the measurement points or process parameters.
  Process Conditions: The actual process conditions may be such that the pressure is genuinely zero, which could indicate a problem in the