How To Fix /ISDFPS/PM156 - Could not determine time segments for equipment &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/PM -

• Message number: 156

• Message text: Could not determine time segments for equipment &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/PM156 - Could not determine time segments for equipment &1 ?

  The SAP error message /ISDFPS/PM156 Could not determine time segments for equipment &1 typically occurs in the context of Plant Maintenance (PM) or related modules when the system is unable to find the necessary time segments for a specific piece of equipment. This can happen for various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  
  Missing Time Segments: The equipment in question may not have any time segments defined in the system. Time segments are necessary for scheduling and planning maintenance activities.
  
  
  Incorrect Configuration: There may be issues with the configuration of the maintenance planning or scheduling settings in the system.
  
  
  Data Inconsistencies: There could be inconsistencies or missing data in the master data related to the equipment, such as maintenance plans or task lists.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access the time segment data for the equipment.
  
  
  System Errors: There may be temporary system errors or issues with the database that prevent the retrieval of time segments.
  
  
  Solutions:
  
  
  Check Time Segments: Verify if the time segments for the equipment are defined. You can do this by navigating to the relevant transaction (e.g., IL03 for equipment) and checking the time segment data.
  
  
  Review Configuration: Ensure that the configuration for maintenance planning and scheduling is set up correctly. This may involve checking the settings in the customizing transaction (SPRO).
  
  
  Update Master Data: If time segments are missing, you may need to create or update the maintenance plans, task lists, or other related master data for the equipment.
  
  
  Check Authorizations: Ensure that the user has the necessary authorizations to view and manage time segments for the equipment.
  
  
  System Check: If the issue persists, check for any system errors or database issues. You may need to consult with your SAP Basis team to investigate further.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for additional guidance and troubleshooting steps.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IL01 (Create Equipment), IL02 (Change Equipment), IL03 (Display Equipment), and IP01 (Create Maintenance Plan).
  SAP Notes: Search for SAP Notes related to the error message for any patches or updates that may address the issue.
  User Forums: Consider checking SAP community forums or user groups for similar issues and solutions shared by other users.
  
  If the problem continues after trying the above solutions, it may be beneficial to engage with your SAP support team or a consultant who specializes in SAP PM for further assistance.