> This page is for Documentation, version Integration guides (default).
> For other versions, use one of these documentation indexes:
> - Integration guides (default): https://avalara.ferndocs.com/docs/integration-guides/llms.txt
> - Refactor guides: https://avalara.ferndocs.com/docs/refactor-guides/llms.txt
> - Get certified: https://avalara.ferndocs.com/docs/get-certified/llms.txt
> - Agent to Agent (A2A): https://avalara.ferndocs.com/docs/agent-to-agent-a2a/llms.txt
> - AI use cases: https://avalara.ferndocs.com/docs/ai-use-cases/llms.txt
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> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://avalara.ferndocs.com/llms.txt.
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# Build

Guide: AvaTax Cross-Border (Customs Duty and Import Tax)

Learn about additional messages and warnings for VAT, customs duty, and import transactions.

In addition to AvaTax [error messages](https://developer.avalara.com/avatax/errors/), VAT, Customs Duty, and Import transactions also provide additional messages and warnings, including those around HS codes, de minimus, sourcing, and so on.

**Example**

```
 ... AttributeApplicabilityId: 1574\n AttributeApplicability: (DeminimisMet = TRUE)
AND ((IsPreferredProgram is NULL) OR (IsCountryOfManufacturePunitive = FALSE
 AND IsPreferredProgram = FALSE)) ...
```

> **Note**
>
> Part of the **AvaTax for CDIT** integration guide. [Open the full "Build" milestone on Avalara](https://developer.avalara.com/products/crossborder/integration-guides/avatax-for-cdit/hvi1172647452150/) to see every page in this section.