How To Fix M3646 - No matching task list & / & / & exists

SAP Error Message - Details

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 646

• Message text: No matching task list & / & / & exists

What causes this issue?

You have entered a task list type, task list group, and/or task list
group counter. However, no task list type with these values exists for
the material.

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?

INCLUDE NA_EINGABE_PRUEFEN
If necessary, create a task list with the specified values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3646 - No matching task list & / & / & exists ?

  The SAP error message M3646 "No matching task list & & & exists" typically occurs in the context of production planning and control when the system is unable to find a task list that matches the criteria specified in the transaction or operation you are trying to perform. This can happen in various scenarios, such as when creating a production order, running a material requirement planning (MRP) run, or executing a production-related transaction.
  Causes:
  
  Missing Task List: The most common cause is that the task list (routing or production version) you are trying to use does not exist in the system for the specified material or plant.
  Incorrect Material or Plant: The material or plant specified in the transaction may not have a corresponding task list defined.
  Task List Status: The task list may be inactive or not released for use in production.
  Incorrect Configuration: There may be configuration issues in the production planning settings that prevent the system from finding the appropriate task list.
  Versioning Issues: If you are using production versions, the version specified may not be valid or may not exist for the material.
  
  Solutions:
  
  
  Check Task List Existence: Verify that the task list (routing or production version) exists for the material and plant you are working with. You can do this by using transaction codes like CA03 (Display Routing) or C223 (Display Production Version).
  
  
  Create or Update Task List: If the task list does not exist, you may need to create it using transaction codes like CA01 (Create Routing) or C201 (Create Production Version). Ensure that all necessary details are filled in correctly.
  
  
  Check Material Master: Ensure that the material master data is correctly set up and that the relevant views (like MRP and Work Scheduling) are maintained.
  
  
  Review Task List Status: Check the status of the task list to ensure it is active and released. You can do this in the routing or production version maintenance screens.
  
  
  Check Configuration Settings: Review the configuration settings in the production planning module to ensure that everything is set up correctly. This may involve checking the settings for MRP, routing, and production versions.
  
  
  Use Alternative Task Lists: If applicable, consider using alternative task lists or production versions that may be available for the material.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CA01, CA03, C201, C223, and MM03 (Display Material).
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches.
  Documentation: Review SAP documentation or help files related to production planning and task lists for further understanding of how they work and how to troubleshoot issues.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in production planning.