What you will build
Add a controlled Status dropdown to the Personal budget table so users can choose only the valid workflow states.
Learning objectives
Open the practice workbook
Practice in your own copy
Make your own Google Sheets copy with the same data, formulas, formatting, filter and frozen header. The original remains unchanged.
Sign in to Google. If the original is not publicly shared, download the full workbook and import it into Google Sheets, or paste the example data into your own sheet.
Hands-on practice
Step 1: Select E2:E5 in the Status column; do not include the E1 header.
Step 2: Choose Data > Data validation. In the Data validation rules sidebar, choose Add rule. Confirm Apply to range is E2:E5, keep Criteria as Dropdown with exactly Planned and Posted, open Advanced options and keep If the data is invalid = Reject the input, then choose Done.
Step 3: Open the dropdown in one Status cell and confirm Planned and Posted are available. Then try entering a value outside those two options; Sheets should show a data-validation error and keep the original valid value unchanged.
Checkpoint
| Date | Category | Description | Amount | Status |
|---|---|---|---|---|
| 2026-09-01 | Income | Salary | 1500 | Posted |
| 2026-09-02 | Food | Groceries | 85 | Posted |
| 2026-09-03 | Transport | Bus pass | 30 | Planned |
| 2026-09-05 | Housing | Rent | 700 | Planned |
Checkpoint: A1:E5 still matches the five headers and four sample rows; E2:E5 has a dropdown containing only Planned and Posted, and values outside those two options are rejected by Reject the input.
Common mistakes and fixes
Correction: return to the exact range and command named in the steps, then compare the live sheet with the Date, Category, Description, Amount, Status source fields.
Independent practice
Add one row with the same schema, repeat the action, verify the new row behaves correctly, then remove it to restore the sample.
Key takeaways
- ✓Apply the dropdown only to E2:E5; do not include the E1 header.
- ✓Open Data > Data validation, choose Add rule, and confirm Apply to range is E2:E5.
- ✓Use Criteria = Dropdown with exactly Planned and Posted.
- ✓In Advanced options, keep If the data is invalid = Reject the input.
- ✓Verify the dropdown and try an invalid value; Sheets should reject it while the A1:E5 sample remains unchanged.
Check your understanding
Answer four questions about the practice sheet.
Next lesson
Continue in recommended learning order with Apply formatting and freeze headers in Personal budget.
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