Learn how to use multi-column combinations as unique keys for deduplication, supporting keep-latest, keep-highest rules for customer, product, and order scenarios.
SheetCleaner Team
Official Tutorial
Continue Building Your Skills
Find and correctly merge records that look different but are actually the same—covering case, whitespace, symbols, full/half-width, email aliases, phone country codes, approximate spelling, etc.
Complete e-commerce data cleansing guide: prevent duplicate order imports, merge customer information, aggregate SKU variants. Support multi-channel order deduplication, customer CLV calculation, product inventory integration with both Power Query and SheetCleaner solutions.
Explore More Related Topics
Comprehensive guide to Excel deduplication retention rules: keep first, keep latest, keep max value, multi-tier rules. Provides SheetCleaner, Power Query, and Excel 365 formula implementations with complete examples and best practices.
Find and correctly merge records that look different but are actually the same—covering case, whitespace, symbols, full/half-width, email aliases, phone country codes, approximate spelling, etc.
Essential skills for marketing/customer service list cleaning: standardize phone number formats, handle country codes, and keep the latest records. Supports standardization of various formats like +86 138-0000-1234, 13800001234, 086-13800001234.
Professional guide for marketing email list cleaning: handle case differences, Gmail dot rules, +alias tags. Supports complex scenarios like ZHANG.SAN@EXAMPLE.COM vs zhangsan@example.com, alice+ads@gmail.com vs alice@gmail.com.
