How To Fix DH850 - System error when requesting the list box data: Unknown signature

DH850 - Overview

• Message type: E = Error

• Message class: DH - DD: Messages for search helps

• Message number: 850

• Message text: System error when requesting the list box data: Unknown signature

What causes this issue?

A system error occurred in connection with list boxes.
The frontend requested data for a list box that is not known in the
backend.

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?

This error can only be corrected by SAP.

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 DH850 - System error when requesting the list box data: Unknown signature ?

  The SAP error message DH850, which states "System error when requesting the list box data: Unknown signature," typically indicates an issue with the data retrieval process in the SAP system, particularly when dealing with list boxes or dropdowns in the user interface. This error can arise due to various reasons, including configuration issues, data inconsistencies, or problems with the underlying database.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the data that the list box is trying to retrieve, such as missing or corrupted entries.
  
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to this error, especially if the list box is not properly defined.
  Authorization Issues: Lack of proper authorizations for the user trying to access the list box data can also trigger this error.
  System Bugs: There may be bugs or issues in the specific version of SAP you are using that could lead to this error.
  Network Issues: Temporary network