2339981 - Raise exception DYNPRO_FIELD_CONVERSION when trying to maintain data in SM30

You are encountering a run time error DYNPRO_FIELD_CONVERSION when using SM30 to maintain a table with negative values.
The view maintenance dialog is created in customer namespace.

Dump details:

Category                             Error at Screen Runtime
Runtime Errors                    DYNPRO_FIELD_CONVERSION
ABAP Program                     SAPLYS055
Application Component         Not Assigned
...
Screen name                      SAPLYS055
Screen number                   0901
Screen field                        YS055-CLIP_DAYS
Error text                           FX015: Sign lost.

This KBA applies for all SAP Products based on Netweaver.

SM30, SM31, SM34, SPRO, Pflegeview, Pflegedialog, DYNPRO_FIELD_CONVERSION, LISTE_SHOW_LISTE, Customizingtabellen, Customizing view, Maintenance dialog, Custominig tables, Maintenance view, FX015: Sign lost, Negative values, Negative Werte, Sign, Vorzeichen, Datenelement, Domäne, Data element, domain, Table fields, Tabellenfelder , KBA , BC-CUS-TOL-TME , View Maintenance Tool , Problem