Why does my DataTable row handle resolve to null?

DataTable empty, RowName mismatch (case-sensitive!), or struct row type doesn't match the DataTable's row struct. Validate all three.

Print the RowName before lookup. Compare with DataTable contents (open the DT asset). Mismatched case or trailing whitespace are common.

GetDataTableRow per-tick is fine but can be cached at BeginPlay if the row doesn't change. Saves repeated string lookup overhead.

Fix: Unreal DataTable Row Handle Returns Null

Quick answer: Verify RowName case. DataTable assigned. Struct row type matches DataTable's struct.

DataTableRowHandle → Get Data Table Row returns null. RowName had typo or wrong case.

The Fix

BP:
  GetDataTableRow(DataTable, RowName)
    Branch: IsValid + Cast successful
      True → Use OutRow
      False → Print "row not found: " & RowName.ToString()

// Defensive: print available rows in BeginPlay
for (auto& row : DataTable->GetRowNames()) {
    UE_LOG(LogTemp, Display, TEXT("Row: %s"), *row.ToString());
}

Logging row names + the requested name reveals the mismatch immediately.

Verifying

RowName matches: lookup succeeds. Mismatch: clear log message identifies the typo.

“Verify name. Lookup hits.”

Related Issues

For Data Asset bulk edit, see bulk edit. For BP Add Unique struct, see add unique.

RowName matches. Lookup lands.