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

# Retire credits

> Credit retirements can be recorded within Mangrove to keep your inventory up to date.

Within each Customer order, find the right delivery, and retire the credits to complete the delivery.

<Tabs>
  <Tab title="Puro CORCs">
    Puro CORCs can be retired directly through Mangrove through an integration with MyPuro.

    <Note>
      Ensure that your Mangrove account has your API Key credentials configured. Speak to the Mangrove team if you are unsure whether this is configured!
    </Note>

    <Steps>
      <Step title="Ensure that the Puro issuance has its existing **Registry Issuance Details** recorded">
        * The Project’s **External Registry Account Number** is set on **Project > Project Details > Registry Details** section
        * The CORC Bundle number should be set on the issuance’s **Registry External ID**
      </Step>

      <Step title="In the Customer order, select the particular delivery you need to complete" />

      <Step title="Retire the delivery">
        * If the credits are from a Puro project, a retirement form will collect the necessary details for Puro to accept the retirement
        * Once the retirement is complete, the transaction ID will be visible on the credit Delivery
      </Step>
    </Steps>
  </Tab>

  <Tab title="Other">
    Think we should integrate with a registry? Reach out to Mangrove to discuss.
  </Tab>
</Tabs>