DIS Audit - COMPLETE Final Report

Date: 2026-01-15 Version: 5.0 (Comprehensive deep analysis complete) Status: COMPLETED

Summary of All Work

Total Fixes Applied: 29

Round 1 Fixes (12 parts)

Round 2 Fixes (6 parts) - From Manual Curl Testing

Round 3 Fixes (6 parts) - Deep Individual Analysis

Round 4 Fixes (2 parts) - Trailing Zeros for NHL

Round 5 Fixes (2 parts) - X_SUFFIX Corrections

Round 6 Fixes (1 part) - YA Suffix

Critical Finding: V2 Script Bug

The quick-audit-v2.mjs script has a serious bug that misses parts actually found by the API.

Parts wrongly reported as "not found" by V2 script:

Root cause: Likely case-sensitivity or result matching logic issue in the script's Map operations.

Parts Found in NHL (Need Routing Code Update)

These parts exist in DIS but require NHL manufacturer code routing:

Recommendation: Add NHL pattern detection to lib/types/dis.ts:

// Patterns that should route to NHL:
// - BER prefix (bearings)
// - F350xxx pattern
// - 790xxx pattern
// - 63xxx pattern

Truly Not Found Parts (~35)

After comprehensive deep analysis and all fixes, these parts remain unavailable:

Oregon/External (4 parts)

396-726, 396-727, 396-731, 396-716

Note: Some variants found in MCH, B&S, HUS - may be cross-referenced

DASH_FORMAT (5 parts)

0509-0269, 1301821-1, 18900-20KT, 56704-40CP, 610-183

DIGIT_6 (3 parts)

632047, 654011, 703167

703167 found in FER with $0.00 price

DIGIT_7 (2 parts)

5410031, 6053900

5600080 found in FER with $0.00 price

OTHER (~20 parts)

43430, 5522, 55232, 9935, 72246, 72475, 72536, 72658, 73239,
50450370B, 102409501, 50214085, 51009935M, 53025RMP4, 53822,
80175702, 84006545102038, 89007555, 921717009, A40R, A44,
ATHQT, B35R, BECO61AB, N457071, T0316C007, T0819C038, TO819CO38, VKBRGKIT

SM_SUFFIX (1 part)

5100259SM

S_SUFFIX (1 part)

183390PS

Final Statistics

Methodology: Manual Curl Testing

Each "not found" part was tested individually:

1. Against all manufacturer codes: B&S, FER, VNT, NHL, KUH, KIN, MCH, SIM, SNP, MUR, HUS
2. With suffix variations: SM, S, YP, GS, FS, PSM, SSM, 0, 00
3. With format variations: uppercase, lowercase, no-dash, dot-format, leading zeros, trailing zeros
4. Against manufacturer website: Briggs & Stratton Parts Lookup

Example curl command:

curl -s -X POST "https://cl2342.disprism.com/report-api/api/partsStore/partsInquiry" \
  -H "Content-Type: application/json" \
  -H "X-API-KEY: XXXXX" \
  -d '{"DealerId":"C","Parts":[{"ManufacturerCode":"FER","PartNumber":"5020875PSM"}]}'

Files Modified

1. MongoDB parts_bns collection - 29 part numbers corrected
2. docs/DIS_AUDIT_COMPLETE_2026-01-14.md - This report

Conclusion

• 29 database fixes applied and verified
• Not found rate reduced from 7% to ~2.7%
• V2 script has bugs - manual curl testing is more accurate
• ~35 parts truly unavailable in DIS system
• ~7 NHL parts need routing code update
• 4 Oregon parts may have cross-references in other codes

Critical Review (2026-01-15)

Issues Found in Original Audit

1. Routing Code Not Updated - Database fixes alone are insufficient

   • Parts like 5021181S exist in FER but routing sends to B&S
   • NHL parts (790085, 614100, etc.) route to B&S instead of NHL

2. 9 Parts Would Still Show "Not in DIS" Due to Wrong Routing:

   Part	Pattern	Routed To	Actually In
   5021181S	S_SUFFIX	B&S	FER
   5046360X1SM	SM_SUFFIX	B&S	FER
   614100	DIGIT_6	B&S	NHL
   713280	DIGIT_6	B&S	NHL
   790085	DIGIT_6	B&S	NHL
   790677	DIGIT_6	B&S	NHL
   BER660246	OTHER	FER	NHL
   BER657295	OTHER	FER	NHL
   F350DSW	OTHER	FER	NHL

Routing Code Fixed (2026-01-15)

Updated lib/types/dis.ts with:

1. NHL Routing for BNS parts:

   • BER* prefix (bearings)
   • F350* prefix
   • 790xxx, 614xxx, 713xxx 6-digit patterns

2. Smart S/SM Suffix Routing:

   • 7-digit base + S/SM suffix -> FER (not B&S)
   • 6-digit base + S/SM suffix -> B&S (unchanged)

Verification After Fix

All 9 previously mis-routed parts now route correctly.

Next Steps

1. Add NHL routing DONE (2026-01-15)
2. Fix S_SUFFIX routing DONE (2026-01-15)
   • S_SUFFIX with 50/51 prefix -> FER (e.g., 5021181S)
   • S_SUFFIX with other prefix -> B&S (e.g., 1759055S)
3. Fix SM_SUFFIX routing DONE (2026-01-15) - REFINED
   • SM_SUFFIX with 50/51/196 prefix -> FER (5020441SM, 1960035SM)
   • SM_SUFFIX with other prefix -> B&S (1670855SM, 1601672SM)
4. Add SKIT_SUFFIX pattern DONE (2026-01-15)
   • 394018SKIT -> B&S @ $36.23
5. Add DIGIT_5 pattern DONE (2026-01-15)
   • 27918 -> B&S @ $4.84
6. Change OTHER pattern to B&S DONE (2026-01-15)
   • Safer default for edge cases
7. Run full DIS sync to verify all 2414 parts
8. Investigate 396-xxx Oregon parts - truly not found

Final Verification (2026-01-15)

Tested 100 representative BNS parts against DIS API:

Not Found Parts:

• 0509-0269 - Internal DASH_FORMAT
• 1301821-1 - Internal DASH_FORMAT
• 396-726, 396-727, 396-731 - Oregon parts

Routing Accuracy: 100% (95/95 found parts route correctly)

Sources Used

• Briggs & Stratton Parts Lookup