How To Fix EL194 - MR cat. is not unique: Installation &1 and &2 allocated to same device

EL194 - Overview

• Message type: E = Error

• Message class: EL - IS-U meter reading data processing

• Message number: 194

• Message text: MR cat. is not unique: Installation &1 and &2 allocated to same device

What causes this issue?

In move-in/out processing, the meter reading category specifies whether
the meter reading is to be carried out by the customer or the utility
company. This parameter is maintained for each installation. If several
installations are allocated to a device, all meter reading categories
must be identical.

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?

Error message extract from SAP system. Copyright SAP SE.

EL194 - Details

• The SAP error message EL194 indicates that there is a conflict in the allocation of materials to a device. Specifically, it states that the material categories (MR cat.) are not unique because two installations (or materials) are allocated to the same device. This can occur in scenarios where multiple materials or installations are trying to use the same device, leading to ambiguity in the system.
  
  Cause:
  
  Duplicate Allocations: Two or more installations or materials are assigned to the same device, which violates the uniqueness requirement for material categories.
  
  Configuration Issues: Incorrect configuration in the device or material master data can lead to this error.
  Data Entry Errors: Manual errors during data entry can result in the same material being assigned to multiple installations.
  
  
  Solution:
  
  Check Allocations: Review the allocations of materials to devices. Identify the installations that are causing the conflict and determine if both need to be allocated to the same device.
  Modify Allocations: If one