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This quick guide walks through the steps to implement Accounting Enrichment. For parameter definitions, status descriptions, and API versions, see the Enrichment API Overview. This is a one-way flow from your integration into Pleo. Before you start, your integration needs to already have the receipt file, the card’s last four digits, and any other matching information the endpoint supports. Pleo then attempts to match the submitted details to an existing accounting entry. The endpoint is a POST, not a GET: it enriches an existing accounting entry with what you send it, and it can’t be used to retrieve a receipt file or the card’s last four digits from Pleo.

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Prerequisites

Before starting this workflow, your integration must already have:
  • Authentication with the accounting-entries:write scope. See Accounting Enrichment API Scopes.
  • The receipt file to upload, in a supported format (PDF, PNG, JPEG, HEIC).
  • The last four digits of the Pleo card used for the transaction.
  • The required transaction details for matching: amount, currency, merchant_name, and at least one of performed_at or settled_at (optionally email). See Transaction Details.

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Workflow Overview

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Step 1: Build the Enrichment Payload

Using the receipt and transaction details already available from prerequisites, encode the receipt file as Base64. For the full list of required and optional parameters, see Request Parameters. The encoded string is submitted in the receipts array in the request body.

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Step 2: Submit the Enrichment Request

Endpoint: POST /v2/accounting-entries:enrich Submit transaction details as query parameters and the encoded receipt in the request body:

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Step 3: Handle the Response

Pleo returns a receiptStatus with every response. For status definitions, see Receipt Statuses.
  • UPLOADED: Enrichment is complete. Store the accountingEntryId for reference.
  • ACCEPTED: Pleo is retrying asynchronously. No action required; retrying will create duplicate receipts.
  • ADDED_TO_RECEIPT_INBOX: Pleo could not make a reliable match. The receipt is placed in the spender’s Pleo Receipt Inbox, accessible on mobile, for manual matching. Retry if within your retry window, otherwise stop.
  • UNRESOLVED: The request could not be processed. Investigate the transaction details and do not retry with the same payload.

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Applying Tags (Optional)

Tags apply Accounting Dimensions (Pleo Tags) to the matched accounting entry at enrichment time. For full details on how tags work, see Tags Sync. Include validated Pleo Tag UUIDs in the request body alongside the receipt:
Before submitting with tags:
  1. Retrieve tag IDs from your Tags Sync implementation: do not use hardcoded IDs.
  2. Confirm each tag ID is present and not archived in your most recent synced snapshot.
  3. If any ID cannot be validated, re-fetch from the Pleo Tags API and remap where possible.
  4. If valid IDs cannot be resolved, omit the tags field and submit the receipt only.
If Pleo rejects a tag, re-fetch tags, remap where possible, and resubmit. If valid IDs cannot be resolved, resubmit without the tags field.