> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zeotap.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Use Cases for Custom Transformers

In this section, let us try to understand how to use directives in your custom transformations and achieve the desired result. The following are some common scenarios:

<CardGroup>
  <Card title="Transformation of Consent Using a Custom Transformer" href="/articles/unify-customer/scenario-1-transformation-of-consent-using-a-custom-transformer" icon="angles-right" iconType="solid" horizontal={true} />

  <Card title="Transformation of Currency data using Custom Transformer" href="/articles/unify-customer/scenario-2-transformation-of-currency-data-using-custom-transformer" icon="angles-right" iconType="solid" horizontal={true} />

  <Card title="Extraction of Object Data using Custom Transformer" href="/articles/unify-customer/scenario-3-extraction-of-object-data-using-custom-transformer" icon="angles-right" iconType="solid" horizontal={true} />

  <Card title="Transformation of Array using Custom Transformer" href="/articles/unify-customer/scenario-4-transformation-of-array-using-custom-transformer" icon="angles-right" iconType="solid" horizontal={true} />

  <Card title="Transformation of Cellphone Number into E164 Format Using Custom Transformer" href="/articles/unify-customer/scenario-5-transformation-of-cellphone-number-into-e164-format-using-custom-transformer" icon="angles-right" iconType="solid" horizontal={true} />
</CardGroup>