How To Fix MPLAN551 - Field &1 is not supported

MPLAN551 - Overview

• Message type: E = Error

• Message class: MPLAN - Messages for Maintenance Plan API

• Message number: 551

• Message text: Field &1 is not supported

What causes this issue?

You want to define a call horizon in days or working days and have
selected DAY or FCD accordingly. Since you have not activated the
business function <ZK>Enterprise Asset Management Part 6</>
(LOG_EAM_CI_6), you can only define the call horizon in percent.
Hinweis fnr _bersetzung:
TAG sollte entsprechend dem Textsymbol QF1 aus dem Program SAPLIWP3
nbersetzt werden.
FKT sollte entsprechend dem Textsymbol QF2 aus dem Program SAPLIWP3
nbersetzt werden.

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?

Define the call horizon in percent. The system determines the points in
time for maintenance calls as a percentage of the maintenance cycle.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MPLAN551 - Field &1 is not supported ?

  The SAP error message MPLAN551, which states "Field &1 is not supported," typically occurs in the context of planning and forecasting within the SAP system, particularly in modules like SAP APO (Advanced Planning and Optimization) or SAP S/4HANA.
  
  Cause:
  The error usually arises due to one of the following reasons:
  
  
  Unsupported Field: The field referenced in the error message (denoted as &1) is not supported in the context of the operation you are trying to perform. This could be due to the field being deprecated, not being part of the data model, or not being relevant for the specific planning scenario.
  
  
  
  Configuration Issues: There may be configuration issues in the planning area or planning book that do not align with the fields being used.
  
  
  Data Model Changes: If there have been recent changes to the data model or the planning area, certain fields may no longer be valid.
  
  
  User Authorization: The user may not have the