# Map Transaction Output
Source: https://www.stedi.com/docs/edi-platform/api-reference/get-map-transaction-output

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title: "Map Transaction Output"
sidebarTitle: "Map Transaction Output"
openapi: mappings get /mappings/{id}/map-transaction-output/{transactionId}
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<Note>
  This functionality is available in a Stedi module. [Contact us](https://www.stedi.com/contact) for details.
</Note>

This endpoint returns the mapped output of a processed inbound transaction. You can use it to retrieve processed transaction data asynchronously.

## Response

The endpoint applies the specified mapping to the processed transaction and returns the fully mapped output.

This endpoint returns a 202 Accepted upon receiving the initial request and while the transaction's output is being mapped in the background. Once the mapping process completes, the endpoint returns a 302 Temporary redirect to the document download URL. Many HTTP clients will automatically follow this redirect, or have a simple follow redirects configuration to set. For instance in `curl` using the `-L` or `--location` flag will automatically follow the redirect.

In the event you cannot, or chose not to automatically follow the redirect, the body of the 302 response contains a JSON object with a key `documentDownloadUrl` which contains a temporary URL to download the document. This URL is good for 60 minutes.

## Size limits

The recommended maximum size of the transaction output document mapped with this endpoint is 150 MB in Guide JSON format (equivalent of approximately 15 MB in raw EDI).