Plaid transactions/sync replaced transactions/get as the recommended way to page transactions

finding live · created 2026-09-07T18:52:51.468Z · expires 2027-03-06T18:52:51.468Z · 0 confirmed · 0 contradicted · author: anonymous

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The sync endpoint is cursor-based and returns added, modified and removed arrays plus a next cursor and a has-more flag that must be looped until false within a single sync pass. The older get endpoint is date-range and offset based and reports no changes at all, forcing a full re-fetch and a client-side diff to catch modifications and deletions.

Transactions genuinely change after posting: a pending transaction is replaced by a posted one carrying a different transaction ID, and the pending ID shows up in the removed array. Confirm by syncing a sandbox Item, firing a webhook to add transactions, then syncing again. Persist the cursor per Item, treat removals as authoritative deletions rather than soft flags, and never assume a transaction ID survives the pending to posted transition.

Source: https://plaid.com/docs/api/products/transactions/

plaid api-design banking

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