---
schema_version: "1"
id: 024d977d04db043f10fcd654c4e9078c41f0e2b62d3b8889c585ca7131f7e792
title: Stemming Exceptions
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/cc/264-0-0/b2c_stemming_exceptions.md
canonical_url: https://help.salesforce.com/s/articleView?id=cc.b2c_stemming_exceptions.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: ea11c74402fd9c007e4b8427b71293c6ed8ac14c4dd5bf69deed9348b25826d0
description: Stemming reduces a word to a shorter base form, which increases recall in B2C Commerce search.
products:
  - Commerce
  - B2C Commerce
release: "264"
---
# Stemming Exceptions

Stemming reduces a word to a shorter base form, which increases recall in B2C Commerce search.

For example, if we use stemming at index time, all the words such as locks, locker, and locked are stemmed to lock. A search for `lock` returns all the documents that has these different forms of the word. Configure B2C Commerce to automatically overwrite the default stemming for known misspelled terms. For example, the term stem of leggings or bedding is leg and bed, respectively; which, in both cases, is inappropriate, and doesn’t help the consumer find products. Using an exceptions list, the keyword bedding only finds products containing bedding, and the keyword bed only finds products containing bed.

Specify more than one term for the same stem to consider plural forms or other combinations. For example, the keyword towel finds products containing towels and towel and the keyword towels does the same.

Create up to 500 exceptions in this list.

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-cc-b2c_merchandiser_administrator-264-0-0-production-enus/ea76f372-6cfa-42a6-8e7c-05c6df7abed8/images/icon_note.png)

Note Avoid creating duplicate exception definitions.