# Marketplace cross-reference lookups

## Introduction

The **cross-reference lookups** page includes a range of prebuilt cross-reference lookup tables. These perform a range of conversions which you can apply via a [map field transformation](/product-documentation/process-flows/building-process-flows/process-flow-shapes/standard-shapes/map-shape/working-with-field-transformations/available-transform-functions.md).  

## Browsing cross-reference lookups

Having selected the **cross-reference lookups** option from the marketplace, you can browse and install cross-reference lookup tables:

<figure><img src="/files/xzoIc3uWV2PsvT7VX3uF" alt=""><figcaption></figcaption></figure>

Tables are displayed over a series of pages, which you can step through using page numbers at the bottom of the marketplace. Each item is displayed with a name, description and an [install](/product-documentation/process-flows/cross-reference-lookups/installing-cross-reference-lookups.md) option.

## Related information

For all information about working with cross-reference lookups, please see our [Cross-reference lookups](/product-documentation/process-flows/cross-reference-lookups.md) section.


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://doc.wearepatchworks.com/product-documentation/marketplace/marketplace-cross-reference-lookups.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.