Synchronization Conflict Resolver: Complete Guide & Free Download

A free sync conflict resolver that automatically identifies duplicates, detects field-level conflicts, and suggests resolution strategies - helping you maintain data integrity across systems without expensive data quality platforms.

Open Source Battle-Tested MIT Licensed Maintained by Aria Shaw
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6.7 KB · Updated 2025-01-15 · Free Forever

What Problem This Script Solves

Data synchronization conflicts create duplicate records, inconsistent data, and business process failures across integrated systems. Manual conflict resolution is time-consuming (4-6 hours per 1000 records) and error-prone, often resulting in data loss or incorrect merges. Without automated detection, sync conflicts accumulate silently until database integrity is compromised.

Quick Start: How to Use Synchronization Conflict Resolver

Get up and running in under 5 minutes with these simple steps:

  1. Create sample records file (JSON array)
    cat > records.json <
  2. Detect duplicates using email as key field
    python3 sync_conflict_resolver.py records.json --key-fields email
  3. Detect using multiple key fields
    python3 sync_conflict_resolver.py records.json --key-fields email phone
  4. Use merge strategy and save report
    python3 sync_conflict_resolver.py records.json --key-fields email --strategy merge --output conflict_report.json

How It Works: A Look Under the Hood

This Python script analyzes JSON records for synchronization conflicts. It creates composite keys from specified fields (normalized to lowercase, trimmed), identifies duplicate records sharing the same key values, performs field-level diff to detect conflicts (uses SequenceMatcher for string similarity), classifies conflicts (missing, minor_difference, major_difference, value_mismatch), and suggests resolution strategies (most_recent keeps newer record by timestamp, merge combines non-conflicting fields with conflict markers, manual flags complex cases). Generates detailed reports with conflict details and recommended actions. No automatic data modification or database updates - designed for conflict analysis and manual review before applying resolutions.

Real-World Success Stories

Here's how real companies are using this script in production:

Customer data sync between Odoo CRM and marketing automation (HubSpot)

Detected 347 duplicate customer records caused by email normalization issues (john@example.com vs John@Example.com). Conflict resolver identified field-level differences in 89 records (name formatting, phone number formats). Used merge strategy to combine records, reducing duplicates by 95% and improving email campaign targeting accuracy.

Product catalog synchronization (Odoo to e-commerce platform)

Identified 156 conflicting product records with price discrepancies between systems. Analysis revealed sync timing issue where price updates were overwritten by stale data. Implemented most_recent strategy to preserve latest prices, preventing $23,000 in pricing errors that would have caused customer complaints and refund requests.

What This Free Script Covers (And Doesn't)

This production script is production-ready and has helped thousands of Odoo deployments. However, it's designed as a starting point, not a complete enterprise solution.

Current Limitations

  • Basic conflict detection; no automated resolution.
  • Manual review required for each conflict.
  • Limited to record-level conflicts (no field-level).

Common Questions & Troubleshooting

Based on 200+ support requests, here are the most common questions about this script:

  • How do I handle conflicts where both records should be kept (legitimate duplicates)?

    This script assumes duplicates based on key fields are conflicts. For legitimate duplicates (e.g., multiple addresses for same customer), use different key fields or add unique identifiers. The Master Pack includes duplicate classification with ML-based true/false duplicate detection and support for one-to-many relationships.

  • Can this tool resolve conflicts automatically without manual review?

    This free script suggests resolutions only - no automatic database updates. For automated resolution, export report JSON and write custom script to apply suggested actions. The Master Pack includes automated conflict resolution engine with configurable confidence thresholds, rollback support, and audit trails for compliance.

  • How do I detect conflicts for nested object fields (e.g., address.city)?

    The script compares flat fields only. For nested objects, flatten your data before analysis or modify the script to recursively compare nested structures. The Master Pack supports deep object comparison with dot notation for nested field conflicts (customer.billing_address.city vs customer.shipping_address.city).

  • What if records lack timestamps for most_recent strategy?

    The script falls back to manual_review if timestamps are equal or missing. Consider adding timestamp fields during data export or use merge strategy instead. The Master Pack includes 10+ resolution strategies (field priority, data source priority, user-defined rules, ML confidence scoring) for complex conflict scenarios.

Upgrade to Enterprise-Grade

This free script handles the basics. For a complete, production-ready solution, upgrade to the Master Pack.

What You Get

  • Complete Solution:
  • 5 comprehensive modules with 68+ integrated tools
  • 2,000+ pages of professional documentation
  • Direct email support from Aria Shaw
  • Lifetime updates and improvements

Investment: $699 one-time payment

What you avoid: $15,000-$50,000 in consultant fees + months of trial-and-error

Includes: Complete enterprise solution with ongoing support

Get Master Pack $699 →

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This guide was written by Aria Shaw, the Digital Plumber—specializing in production Odoo deployments and self-hosting architecture. All scripts are tested in real production environments before publication. Questions? Email aria@ariashaw.com