How To Fix WW416 - This line type (level) cannot be selected

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 416

• Message text: This line type (level) cannot be selected

What causes this issue?

You have selected a variant line, a characteristics profile line or an
information line. These line categories cannot be reclassified.

System Response

How to fix this error?

Variants cannot be individually reclassified. Select the respective
generic material to reclassify all of the variants.
Characteristics profiles cannot be individually reclassified. Select
the whole material group instead.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW416 - This line type (level) cannot be selected ?

  The SAP error message WW416, which states "This line type (level) cannot be selected," typically occurs in the context of working with hierarchical data structures, such as when dealing with work breakdown structures (WBS), project structures, or similar scenarios in SAP.
  Cause:
  The error usually arises due to one of the following reasons:
  
  
  Line Type Restrictions: The line type you are trying to select may not be allowed for the operation you are performing. For example, certain line types may be designated as summary lines or may not be editable.
  
  
  Hierarchy Level Issues: You may be trying to select a line that is at a level in the hierarchy that does not permit selection or modification. For instance, if you are trying to select a summary node instead of a detail node.
  
  
  Configuration Settings: There may be specific configuration settings in the SAP system that restrict the selection of certain line types based on the business process or project structure.
  
  
  Solution:
  To resolve the WW416 error, you can try the following steps:
  
  
  Check Line Type: Verify the line type you are trying to select. Ensure that it is appropriate for the action you are attempting to perform. If it is a summary line, consider selecting a detail line instead.
  
  
  Review Hierarchical Structure: Look at the hierarchical structure you are working with. Ensure that you are selecting a line that is valid for the operation. If you are in a project structure, make sure you are selecting a valid WBS element.
  
  
  Consult Documentation: Refer to the SAP documentation or help files related to the specific transaction or module you are using. This can provide insights into which line types are selectable.
  
  
  Check User Authorizations: Ensure that you have the necessary authorizations to perform the action on the selected line type. Sometimes, restrictions can be due to user roles and permissions.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to project management, such as CJ20N (Project Builder) or CJ01 (Create Work Breakdown Structure).
  SAP Notes: Check SAP Notes for any updates or patches that may address this specific error.
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the WW416 error and take appropriate action to resolve it.