Add an Additional Reference to a contract using query string parameters

If you're using eDD alongside Access PaySuite DDCMS to collect Direct Debit sign ups, you can provide an Additional Reference for a Direct Debit contract, by appending it as a query string to the site’s URL.
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To do this, append the below value to your eDD URL, including the additional reference directly after the equals sign, before providing the URL to the customer.
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?additionalReference=
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You'll then be able to search contracts in Access PaySuite DDCMS based on the additional reference passed during the Direct Debit sign up.