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Dienstplan/CHANGELOG.md
copilot-swe-agent[bot] abf5e9bbfb Add CHANGELOG documenting the formula syntax fix
Co-authored-by: Kenearos <86194771+Kenearos@users.noreply.github.com>
2025-11-14 14:14:25 +00:00

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# Changelog
## 2025-11-14 - Fix Excel Formula Syntax Error
### Issue
Fixed a syntax error in the Checks sheet that would cause Excel formula errors.
### Details
The nested WENN (IF) formula in the Checks sheet Status column was missing a semicolon between the empty string result and the second WENN function.
**File:** `src/build_template.py`, line 264
**Before:**
```excel
=WENN(A2="";""WENN(ABS(B2-1)<=0,0001;"OK";"FEHLER"))
```
**After:**
```excel
=WENN(A2="";"";WENN(ABS(B2-1)<=0,0001;"OK";"FEHLER"))
```
### Impact
This fix ensures that the Checks sheet Status column works correctly to validate that daily shift totals sum to 1.0, displaying "OK" or "FEHLER" as appropriate.
### Testing
- Template rebuilt successfully
- November 2025 file generated without errors
- All formulas verified syntactically correct
- No security issues found (CodeQL scan: 0 alerts)
### How to Use
To generate a corrected November 2025 file:
```bash
# 1. Rebuild the template with the fix
python src/build_template.py
# 2. Generate November 2025
python src/fill_plan_dates.py 2025 11
# 3. Open output/Dienstplan_2025_11_NRW.xlsx in Excel
```
The file will now work correctly with all formulas calculating as expected according to the Variante 2 (streng) rules specified in SPECIFICATION.md.