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

M3646 - Overview

• 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.

M3646 - Details

• 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