How To Fix MC048 - This cursor position not allowed when adding fields

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 048

• Message text: This cursor position not allowed when adding fields

What causes this issue?

When adding fields to a matchcode object, you must
add these fields to existing fields. Fields which already exist
cannot be changed.

System Response

The system rejects the requested change and new entries can be made.

How to fix this error?

You can only add fields in the manner described.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC048 - This cursor position not allowed when adding fields ?

  The SAP error message MC048 ("This cursor position not allowed when adding fields") typically occurs in the context of the SAP system when you are trying to add fields to a data structure or table in a way that is not permitted by the system. This error is often encountered in the Data Dictionary (SE11) or while working with ABAP programs.
  Cause:
  The error can be caused by several factors, including:
  
  
  Invalid Cursor Position: You may be trying to add a field at a position in the structure that is not allowed. For example, you might be trying to insert a field in the middle of an existing structure where the system does not allow modifications.
  
  
  Field Type Restrictions: Certain field types or attributes may not be compatible with the current structure or table definition.
  
  
  Locked Objects: The object you are trying to modify may be locked by another user or process, preventing changes.
  
  
  Technical Settings: The technical settings of the table or structure may restrict certain modifications.
  
  
  Solution:
  To resolve the MC048 error, you can try the following steps:
  
  
  Check Cursor Position: Ensure that you are placing the cursor in a valid position when trying to add a field. Typically, you should place the cursor at the end of the structure or table definition.
  
  
  Use Append: If you need to add a new field, consider using the "Append" option instead of trying to insert it in the middle of the structure.
  
  
  Review Field Types: Make sure that the field type you are trying to add is compatible with the existing structure.
  
  
  Unlock Objects: If the object is locked, check with your system administrator or use transaction SM12 to see if you can unlock it.
  
  
  Check Technical Settings: Review the technical settings of the table or structure to ensure that modifications are allowed.
  
  
  Transport Requests: If you are working in a development environment, ensure that you have the necessary transport requests in place for your changes.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on modifying data structures.
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SE37 (Function Module), SE38 (ABAP Editor).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error.
  Community Forums: SAP Community and other forums can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after trying these solutions, consider reaching out to your SAP Basis or ABAP development team for further assistance.