Bulk Upload

Pre-signed S3 upload and file registration for both bulk Excel pipelines (bulk-contact and funding-source storage paths).

📄️ Get Pre-signed S3 URL for Bulk Contact Upload

**Step 3** of the [Funding source links (contacts) bulk flow](/docs/guides/transfer-center/bulk-upload#flow-a-funding-source-links-contacts).

📄️ Register Bulk Contact Upload

**Step 4** of the [Funding source links (contacts) bulk flow](/docs/guides/transfer-center/bulk-upload#flow-a-funding-source-links-contacts).

📄️ Get Pre-signed S3 URL for Bulk Funding Source Upload

**Step 3** of the [Direct funding source bulk flow](/docs/guides/transfer-center/bulk-upload#flow-b-direct-funding-sources).

📄️ Register Bulk Funding Source Upload

**Step 4** of the [Direct funding source bulk flow](/docs/guides/transfer-center/bulk-upload#flow-b-direct-funding-sources).