How To Fix /SAPAPO/PAGT_HEUR039 - Maximum limit of scheduling attempts reached - Infinite scheduling

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PAGT_HEUR -

• Message number: 039

• Message text: Maximum limit of scheduling attempts reached - Infinite scheduling

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PAGT_HEUR039 - Maximum limit of scheduling attempts reached - Infinite scheduling ?

  The SAP error message /SAPAPO/PAGT_HEUR039 Maximum limit of scheduling attempts reached - Infinite scheduling typically occurs in the context of Advanced Planning and Optimization (APO) when the system is unable to find a feasible solution for a scheduling problem after a predefined number of attempts. This can happen for various reasons, including:
  Causes:
  
  Data Issues: Inconsistent or incorrect master data (e.g., resources, production versions, or transportation lanes) can lead to infeasibility in scheduling.
  Capacity Constraints: If the capacity of resources is insufficient to meet the demand, the system may struggle to find a feasible schedule.
  Infinite Loop in Scheduling: The scheduling algorithm may be stuck in a loop due to conflicting constraints or settings.
  Configuration Issues: Incorrect settings in the planning area or heuristics can lead to scheduling problems.
  Demand and Supply Mismatch: If the demand exceeds the available supply or if there are constraints that prevent the fulfillment of demand, scheduling may fail.
  
  Solutions:
  
  Check Master Data: Review and validate the master data related to resources, production versions, and transportation lanes to ensure they are correctly configured.
  Review Capacity Settings: Ensure that the capacity of resources is sufficient to meet the demand. Adjust capacity settings if necessary.
  Adjust Heuristic Parameters: If you are using a heuristic for scheduling, consider adjusting the parameters or increasing the maximum number of scheduling attempts allowed.
  Analyze Constraints: Look for any conflicting constraints in the planning area that may be causing the scheduling to fail. This may include lead times, setup times, or other restrictions.
  Run a Simplified Schedule: Try running a simplified version of the scheduling process to identify if specific constraints or data are causing the issue.
  Check Logs and Traces: Review the logs and traces for more detailed error messages that can provide insights into what is causing the infinite scheduling attempts.
  Consult SAP Notes: Check for any relevant SAP Notes or updates that may address known issues related to this error message.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like /SAPAPO/SDP94 (for planning board) or /SAPAPO/MC90 (for checking the planning area) to analyze the planning data.
  SAP Help Portal: Refer to the SAP Help Portal for documentation on APO heuristics and scheduling.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be beneficial to involve SAP support for further assistance.