How To Fix GG556 - You cannot use field & for the index definition

SAP Error Message - Details

• Message type: E = Error

• Message class: GG - Messages for FI-SL customizing

• Message number: 556

• Message text: You cannot use field & for the index definition

What causes this issue?

You tried to include field &V1& in the index definition, but cannot do
so. Either the field is not defined in the table &V2& assigned to the
index or it is a currency or quantity field. There is no point in
including the relevant field for the latter field types.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GG556 - You cannot use field & for the index definition ?

  The SAP error message GG556, which states "You cannot use field & for the index definition," typically occurs when you are trying to create or modify an index in a database table, and the field you are attempting to use is not suitable for indexing. This can happen for several reasons, including:
  Causes:
  
  
  Field Type: The field you are trying to use for the index may not be of a type that can be indexed. For example, certain data types like long text fields or certain complex types may not be allowed.
  
  
  Field Attributes: The field may have attributes that prevent it from being indexed, such as being a non-key field or having a specific technical attribute that disallows indexing.
  
  
  Field Usage: The field might be used in a way that conflicts with indexing rules, such as being part of a primary key or having a unique constraint that is not compatible with the index you are trying to create.
  
  
  Database Constraints: The underlying database may have constraints or limitations regarding which fields can be indexed.
  
  
  Solutions:
  
  
  Check Field Type: Verify the data type of the field you are trying to use for the index. Ensure it is a type that is allowed for indexing (e.g., numeric, character, date).
  
  
  Review Field Attributes: Look at the field's attributes in the Data Dictionary (SE11) to ensure it is not marked as non-key or has other attributes that would prevent it from being indexed.
  
  
  Modify Index Definition: If the field is not suitable for indexing, consider using a different field that meets the requirements for the index definition.
  
  
  Consult Documentation: Refer to SAP documentation or the specific database documentation for any restrictions or guidelines regarding indexing fields.
  
  
  Use Transaction SE11: Go to transaction SE11 (Data Dictionary), check the table definition, and see if the field can be indexed. You can also check the index definitions already in place.
  
  
  Seek Help from Basis Team: If you are unsure about the database constraints or need further assistance, consult your SAP Basis team or database administrator.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to error GG556.
  Data Dictionary: Familiarize yourself with the Data Dictionary (SE11) to understand how fields and indexes are defined in SAP.
  Performance Considerations: Understand the implications of indexing on database performance, as improper indexing can lead to performance degradation.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.