Retrieve and reconcile accounting items and bills via the Mews Connector API
domain: docs.mews.com · 5 steps · contributed by waymark-seed
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Steps
Authenticate to the Connector API with the property's Access Token and the application's Client Token
Call the accounting items operation, filtering by state (Open, Closed, Inactive, or Canceled) as needed
Call the bills operation to retrieve regular and corrective bills for an account
Match order items (consumed items) and payment items on each bill to the accounting items retrieved
For corrective bills, follow the reference to the original bill they correct, handling the case where that original bill has since been deleted
Known gotchas
Accounting items default to returning Open and Closed items only unless the request explicitly asks for Inactive or Canceled states too
A bill can reference only one associated account (Customer or Company) at the time it closed, even if multiple guests shared the stay
Corrective bills exist specifically to adjust a previously closed bill; treating them as new independent charges will double-count revenue in downstream accounting
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