--- title: Widget FAQ description: Common questions and error messages explained. --- Three options: - **Percent empty/not empty**: Under Data on display, select Percent empty or Percent not empty - **Ratio**: For Select or Checkbox fields, enable Ratio to show a specific option as a percentage of all records - **Suffix**: For aggregate charts, add `%` as a Suffix in Style settings When using **Group by**, you can display series two ways: - **Grouped**: Bars side by side—best for comparing exact values - **Stacked**: Bars on top of each other—best for showing composition Toggle **Stacked** in Style settings to switch. Available operations depend on **field type**: - **Number fields**: Sum, Average, Min, Max - **Date fields**: Earliest, Latest (aggregate charts only) - **Checkbox fields**: Count true, Count false If you don't see an option, check that you've selected a compatible field type. Many settings only appear when prerequisites are met: - **Date granularity**: Select a date field first - **Group by, Legend, Stacked**: Set Source first - **Legend, Stacked toggles**: Set Group by first If a setting is missing, configure its prerequisite first. The chart found no records matching your configuration. **To fix:** Remove or adjust filters, verify you selected the correct Source object, or check that records exist for your date range. A required setting is missing or incompatible. **To fix:** Ensure Source is set, Data on display is configured, and any required grouping fields are selected. Your data exceeds display limits (100 bars, 100 data points, or 100 slices). **To fix:** Add filters to narrow your data, or change date granularity from Day to Week or Month. The selected field has no values for the records in your filter, or the field type doesn't match the expected data. **To fix:** Try a different field, or check that records have values for the selected field.