Add Upload Part
<b>Deprecated.</b> This endpoint is deprecated in favor of the [Create Bulk Transactions Upload URL](/2024-10-01/api/transactions/create-bulk-transactions-upload-url) endpoint. New integrations should use the bulk flow outlined in the [Historical Transaction Uploads](/2024-10-01/api/integration-guides/historical-transaction-uploads) integration guide.
Call this endpoint using the upload ID provided in the [Create Upload](/2024-10-01/api/transactions/uploads/create) endpoint to add parts to your upload. Currently, this endpoint supports adding historical transactions.
<b>Required scopes:</b> `transaction:write`
<b>Note:</b> `Maximum of 500 transactions can be uploaded per request`.