How To Fix CT761 - Material type & is not defined for task list type &

SAP Error Message - Details

• Message type: E = Error

• Message class: CT - CIM messages: ATAB table accesses

• Message number: 761

• Message text: Material type & is not defined for task list type &

What causes this issue?

You are attempting to create a task list with task list type &V2& for a
material with material type &V1&. However, this constellation does not
exist.

How to fix this error?

To create a task list with task list type &V2& for a material with
material type &V1&, you must maintain the <ZH>material type
allocation</> under <ZH>General data</> in Customizing for routings.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CT761 - Material type & is not defined for task list type & ?

  The SAP error message CT761 indicates that a specific material type is not defined for a particular task list type. This error typically occurs in the context of production planning or maintenance planning when the system is trying to process a task list that references a material type that has not been configured correctly.
  Cause:
  
  Missing Configuration: The material type specified in the error message is not defined in the system for the task list type being used. This could be due to a lack of configuration in the Customizing settings.
  Incorrect Task List Type: The task list type being used may not be compatible with the material type specified.
  Data Entry Error: There may be a typo or incorrect entry in the material type or task list type.
  
  Solution:
  
  
  Check Material Type Configuration:
  
  Go to the Customizing settings in SAP (Transaction SPRO).
  Navigate to the relevant area for task list configuration (e.g., Production Planning or Plant Maintenance).
  Ensure that the material type in question is defined for the specific task list type you are using.
  
  
  
  Define Material Type for Task List:
  
  If the material type is not defined, you may need to add it. This can typically be done in the configuration settings where you define which material types are allowed for which task list types.
  
  
  
  Verify Task List Type:
  
  Check if the task list type you are using is appropriate for the material type. You may need to change the task list type or use a different material type that is compatible.
  
  
  
  Check for Typos:
  
  Review the entries for any typos or incorrect values that may have been entered for the material type or task list type.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on configuring material types and task list types.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like OMC1 (for task list types) or OMS2 (for material types) to check and configure the relevant settings.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  User Roles: Ensure that you have the necessary authorizations to make changes to the configuration settings.
  
  By following these steps, you should be able to identify the cause of the CT761 error and implement the necessary changes to resolve it.