How To Fix MW546 - Error during scheduling (return code &1, material &2, plant &3 &4)

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 546

• Message text: Error during scheduling (return code &1, material &2, plant &3 &4)

System Response

The latest possible generation date cannot be determined. The item
cannot be released for follow-on document generation.

How to fix this error?

INCLUDE ISR_SYSTEMFEHLER OBJECT DOKU ID TX

Procedure for System Administrators

An error occurred during determination of the last possible generation
date.
The error occurred while function module WAUF_SCHEDULE_GENERATION_DATE
was being called.
Current data:
Return code &V1&
Material &V2&
Plant &V3&
&V4&
This is probably a program error. Please inform SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW546 - Error during scheduling (return code &1, material &2, plant &3 &4) ?

  The SAP error message MW546 indicates that there was an issue during the scheduling of a material in a specific plant. The error message typically includes a return code, material number, and plant information, which can help in diagnosing the problem.
  Cause:
  The MW546 error can be caused by several factors, including:
  
  Material Master Data Issues: The material may not be properly set up in the system, or there may be missing or incorrect data in the material master record.
  Plant Configuration: The plant may not be configured correctly for the material, or there may be issues with the plant's settings.
  Scheduling Parameters: Incorrect scheduling parameters or settings in the production planning module can lead to scheduling errors.
  Capacity Constraints: If there are capacity constraints in the plant (e.g., machine or labor availability), the system may not be able to schedule the production order.
  Stock Availability: Insufficient stock or incorrect stock levels can also lead to scheduling issues.
  
  Solution:
  To resolve the MW546 error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and verify that all necessary data is correctly maintained, including basic data, purchasing, and MRP views.
  
  
  
  Review Plant Settings:
  
  Ensure that the plant is correctly configured for the material. Check the plant-specific settings in the material master and ensure that the material is valid for the specified plant.
  
  
  
  Examine Scheduling Parameters:
  
  Review the scheduling parameters in the production planning settings. Ensure that the settings align with the requirements for the material and the production process.
  
  
  
  Check Capacity Planning:
  
  Use transaction codes like CM01 (Capacity Overview) to check for any capacity constraints that may be affecting the scheduling of the material. Adjust capacity planning as necessary.
  
  
  
  Analyze Stock Levels:
  
  Check the stock levels for the material in the specified plant using transaction code MMBE. Ensure that there is sufficient stock available for the production order.
  
  
  
  Review Return Code:
  
  The return code provided in the error message can give specific insights into the nature of the error. Refer to SAP documentation or consult with your SAP support team to interpret the return code.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to the MW546 error.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MMBE (Stock Overview), CM01 (Capacity Overview).
  SAP Documentation: Refer to SAP Help documentation for detailed information on production planning and scheduling.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP support team or a consultant for further investigation.