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

# Routing Logic

> How addresses and memos are reconciled.

The library follows a strict set of rules to determine the `address` and `routingId` for any given input.

## Routing Scenarios

<AccordionGroup>
  <Accordion title="M-Address (No Memo)">
    Input: `MA7Q...QD`
    Output:

    * `address`: `GA7Q...HB`
    * `routingId`: `123`
  </Accordion>

  <Accordion title="M-Address + External Memo">
    Input: `MA7Q...QD` + `MEMO_ID: 999`
    Output:

    * `address`: `GA7Q...HB`
    * `routingId`: `123`
    * `warning`: `REDUNDANT_MEMO` (The M-address ID takes priority).
  </Accordion>

  <Accordion title="G-Address + MEMO_ID">
    Input: `GA7Q...HB` + `MEMO_ID: 123`
    Output:

    * `address`: `GA7Q...HB`
    * `routingId`: `123`
  </Accordion>

  <Accordion title="G-Address + Numeric MEMO_TEXT">
    Input: `GA7Q...HB` + `MEMO_TEXT: "123"`
    Output:

    * `address`: `GA7Q...HB`
    * `routingId`: `123`
    * `warning`: `MEMO_TYPE_MISMATCH` (Numeric text memos are often sent by mistake instead of ID memos).
  </Accordion>

  <Accordion title="G-Address + Non-Numeric MEMO_TEXT">
    Input: `GA7Q...HB` + `MEMO_TEXT: "abc"`
    Output:

    * `address`: `GA7Q...HB`
    * `routingId`: `""`
    * `warning`: `NON_ROUTABLE_MEMO` (Cannot extract a numeric ID from text).
  </Accordion>

  <Accordion title="G-Address + MEMO_HASH/RETURN">
    Input: `GA7Q...HB` + `MEMO_HASH: "..."`
    Output:

    * `address`: `GA7Q...HB`
    * `routingId`: `""`
    * `warning`: `NON_ROUTABLE_MEMO`.
  </Accordion>

  <Accordion title="C-Address">
    Input: `C...`
    Output:

    * `address`: `""`
    * `destinationError`: `INVALID_DESTINATION`.
  </Accordion>
</AccordionGroup>