> For the complete documentation index, see [llms.txt](https://docs.dexpiry.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dexpiry.com/dexpiry_public_eng/extra-use-case-models/product-manufacturer-application/supply-chains-interoperability.md).

# Supply chains interoperability

By integrating the DEXPIRY system with the supply chain, manufacturers would get a complete picture of the movement of products - from the factory assembly line to the end user. Using interoperable blockchain standards (e.g. ERC-721/EIP-3525 + GS1 or EPCIS data), it is possible to link the warranty token with data from logistics systems, warehouses, distribution and retail. Each step in the chain would add a layer of information: when the product was packaged, where it was stored, when it was delivered and to whom.

This interoperability would enable:

* **automatic warranty activation** at the time of delivery to the end user
* **precise authenticity tracking** (detection of gray trade and parallel imports)
* **better service and replacement planning**, because all handling data is available through the DEXPIRY token

In this way, the DEXPIRY warranty token would become not only a tool for the user, but also a data link between production, logistics, service and customer support - all in one immutable record.


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