How To Fix FDT_EXPRESSIONS780 - Component &1 of table &2 is not directly accessible; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 780

• Message text: Component &1 of table &2 is not directly accessible; see long text

What causes this issue?

In the current table operation expression, one or more of the following
conditions are fulfilled:
You have selected one of the aggregation operations and passed field
&v1& to it.
You have selected the sort operation and passed field &v1& as one of the
columns to be sorted.
You have defined a selection condition based on field &v1&.
However, this field does not belong directly to the table data object
that is assigned to the expression. Rather, it belongs to a second table
data object &v2& that is part of the top-level table. Components that
belong to nested tables cannot be used for aggregation operations or
selection conditions or sorting.

System Response

The expression cannot be activated.

How to fix this error?

To perform an aggregation or sorting over field &v1&, or to use that
field for defining a selection condition, create a new table operation
expression and assign it directly to table &v2&. This gives you
unrestricted access to all components of that table, including data
object &v2&.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS780 - Component &1 of table &2 is not directly accessible; see long text ?

  The SAP error message FDT_EXPRESSIONS780 indicates that a specific component of a table is not directly accessible. This error typically arises in the context of using the SAP Fiori Design Studio or when working with expressions in the context of SAP FDT (Flexible Data Types).
  Cause:
  The error can occur due to several reasons:
  
  Data Model Issues: The component you are trying to access may not be part of the data model or may not be exposed correctly.
  Access Restrictions: There may be restrictions on accessing certain components due to authorization issues or data visibility settings.
  Incorrect Path: The path used to access the component may be incorrect or not properly defined.
  Technical Issues: There could be underlying technical issues with the data source or the way the data is structured.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Data Model: Ensure that the component you are trying to access is part of the data model and is correctly defined.
  Review Access Rights: Verify that you have the necessary authorizations to access the component. If not, you may need to request access from your system administrator.
  Correct Path: Double-check the path or expression you are using to access the component. Make sure it is correctly defined and points to the right location.
  Consult Documentation: Refer to the SAP documentation for the specific version you are using to understand the expected structure and access methods for the data model.
  Debugging: If you have access to debugging tools, you can use them to trace the execution and identify where the access issue is occurring.
  Contact Support: If the issue persists, consider reaching out to SAP support for further assistance, providing them with the error details and context.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  Training and Documentation: Familiarize yourself with the SAP FDT and data modeling concepts through available training resources and documentation.
  
  By following these steps, you should be able to diagnose and resolve the FDT_EXPRESSIONS780 error effectively.