Basis Errors and Solutions

Symptom
If you use the method ADD_SORT of the class CL_SALV_SORTS to transfer a numeric field as a sort criterion, the runtime error cx_salv_data_error may occur.
Other terms
Object model, OM, ALV Grid, ALV list, full screen
Dump
CL_SALV_TABLE,
CL_SALV_SORTS, ADD_SORT
CL_SALV_SORT, SET_GROUP, SET_OBLIGATORY, SET_SEQUENCE, SET_SUBTOTAL
Sorting
Reason and Prerequisites
The initial values were ignored.
Solution
Implement the source code corrections in accordance with the correction [...]

Symptom
If a Column in the runtime configuration model references a non existing Field, the opening of the Web Dynpro settings dialog results into a dump, as the resolving of that Field fails at runtime.
Other terms
ALV Java Web Dynpro, WD, Web Dynpro, WD-ALV, ALV, SAP List Viewer, WDALV, BI-WDALV, sort, settings dialog, settings ui, [...]

Symptom
You use the Legacy System Migration Workbench (LSMW) and you select an object using a dialog box (”All Objects” or “My Objects”). However, the system does not return the selected objects in this case.
Other terms
/SAPDMC/MLSMWF01, G_DISPLAY_SELECTION_DYNPRO
Reason and Prerequisites
Instead of the actual three lead columns (project, subproject, and object), the system generates the dialog [...]

Symptom
POWL table columns are not showing correct values.
Other terms
POWL Valid values, POWL columns wrong values.
Reason and Prerequisites
As the OVS is set,the previous columns valid values are taken,
now clearing everytime the new column start.
Solution
Please implement the attached correction instructions