# Custom Rules

Once the base set is defined, you can **refine** it using custom rules. These are applied in sequence.

* **Filter**\
  Restrict results by conditions (e.g., stock > 0, price < 100).

{% embed url="<https://app.gitbook.com/o/iFKI1JaxSfPoiGt4tT2k/s/6Yw9IRJ6KbbucQPwZUCZ/~/changes/383/recommendations-and-merchandising/concepts/strategies/rules/custom-rules/filters>" %}

* **Sort**\
  Reorder the product list (e.g., by conversion rate descending).

{% embed url="<https://app.gitbook.com/o/iFKI1JaxSfPoiGt4tT2k/s/6Yw9IRJ6KbbucQPwZUCZ/~/changes/383/recommendations-and-merchandising/concepts/strategies/rules/custom-rules/sorting>" %}

* **Limit**\
  Set a maximum number of products to display (e.g., 12 items).
* **Minimum**\
  Ensure a minimum number of products; if not met, fallback rules can be used.
* **Condition (if)**\
  Apply conditional logic (e.g., if category = “Shoes” then show top sellers, else show new arrivals).
* **Exclusion**\
  Remove specific products or groups (e.g., exclude the currently viewed product on a PDP).
* **Shuffle** \
  Randomize order to add variety.
* **Diversificatin** \
  Ensure variety across rules or globally.
* **Pin products**\
  Force specific products into fixed positions (e.g., always pin Hero SKU at position #1).


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