How To Fix UD644 - List not changed ( action interrupted or hit list empty )

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 644

• Message text: List not changed ( action interrupted or hit list empty )

What causes this issue?

Filtering by data model was manually cancelled, or returned
an empty set of entity types.

System Response

The list has not been changed.

How to fix this error?

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 UD644 - List not changed ( action interrupted or hit list empty ) ?

  The SAP error message UD644, which states "List not changed (action interrupted or hit list empty)," typically occurs in the context of executing a report or transaction that generates a list of data, but the system is unable to process the request due to certain conditions. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Empty Hit List: The most common reason for this error is that the selection criteria used in the report or transaction did not return any results, leading to an empty hit list.
  Action Interrupted: The action you were trying to perform (like deleting, changing, or processing records) was interrupted, possibly due to a system error or user cancellation.
  Authorization Issues: Lack of proper authorizations to view or manipulate the data can also lead to this error.
  Data Locking: If the data you are trying to access is locked by another user or process, it may prevent