How To Fix MC768 - Cannot expand or collapse line

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 768

• Message text: Cannot expand or collapse line

What causes this issue?

It is only possible to expand the fields of the following:
a) Lines that contain '*' in the basis field name and view field name.
In this case, all fields of the selected basis table are included.
b) Lines that start with .GROUP. All fields of the group are included.
c) Lines that start with .APPEND. All fields of the append view are
included.

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?

Before selecting the function, position the cursor on a line that can
be expanded or use the function 'Expand all'.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC768 - Cannot expand or collapse line ?

  The SAP error message MC768 "Cannot expand or collapse line" typically occurs in the context of the SAP system when users are trying to manipulate the display of data in a report or transaction that involves hierarchical data structures, such as in the Material Management (MM) or Sales and Distribution (SD) modules.
  Cause:
  
  Data Structure Issues: The error may arise if the data structure does not support expansion or collapsing. This can happen if the data is not organized in a way that allows for hierarchical representation.
  Authorization Issues: Users may not have the necessary authorizations to view or manipulate certain data, leading to restrictions on expanding or collapsing lines.
  Technical Issues: There may be a technical glitch or bug in the SAP system that prevents the proper functioning of the expand/collapse feature.
  Incorrect Configuration: The configuration settings for the report or transaction may not be set up correctly, leading to issues with data display.
  
  Solution:
  
  Check Data Structure: Ensure that the data you are trying to expand or collapse is organized correctly. Verify that the hierarchy is properly defined in the system.
  Review Authorizations: Check the user’s authorization profile to ensure they have the necessary permissions to view and manipulate the data. You may need to consult with your SAP security team.
  Refresh the Session: Sometimes, simply refreshing the session or logging out and back into the SAP system can resolve temporary glitches.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve known bugs related to this error.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the transaction code and any relevant screenshots.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes, such as MC.9 (Inventory Analysis) or MC.1 (Material Analysis).
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to the specific module you are working with to understand how hierarchical data is managed and displayed.
  
  By following these steps, you should be able to diagnose and potentially resolve the MC768 error in your SAP environment.