How To Fix MPLAN551 - Field &1 is not supported

SAP Error Message - Details

• 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 necessary authorizations to access or modify the field in question.
  
  
  Solution:
  To resolve the MPLAN551 error, you can take the following steps:
  
  
  Check Field Validity: Verify that the field referenced in the error message is valid for the operation you are trying to perform. Consult the documentation or SAP notes related to the specific planning area or book.
  
  
  Review Configuration: Check the configuration of the planning area or planning book. Ensure that all fields being used are correctly defined and supported.
  
  
  Update Data Model: If there have been changes to the data model, ensure that all relevant objects are updated accordingly. This may involve adjusting the planning area or reassigning fields.
  
  
  User Authorizations: Ensure that the user has the necessary authorizations to access and modify the fields in question. This may require coordination with your SAP security team.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  Testing: After making any changes, conduct thorough testing to ensure that the error no longer occurs and that the planning functionality works as expected.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module you are working with (e.g., SAP APO, SAP S/4HANA) for detailed information on planning areas and supported fields.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it appears to be a bug or a more complex issue.
  
  By following these steps, you should be able to identify the cause of the MPLAN551 error and implement a suitable solution.