---
schema_version: "1"
id: 1c709028581e734f41d7610ebf15f7b9be0bf73844d06d2142713a1164d64f63
title: Common HTTP Headers for B2C Commerce Events
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/cc/264-0-0/b2c_event_common_headers.md
canonical_url: https://help.salesforce.com/s/articleView?id=cc.b2c_event_common_headers.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: ebfd3b9f3e052486bf0f3141230f0952606efbf12e21a568e3abec325be77309
description: Every B2C Commerce event includes the same set of standard x-sf-cc-* headers, so your connector can identify and correlate events consistently regardless of the event type.
products:
  - Commerce
  - B2C Commerce
release: "264"
---
# Common HTTP Headers for B2C Commerce Events

Every B2C Commerce event includes the same set of standard `x-sf-cc-*` headers, so your connector can identify and correlate events consistently regardless of the event type.

| Header | Description | Example |
| --- | --- | --- |
| `x-sf-cc-timestamp` | ISO-8601 timestamp when event was generated | `2026-03-11T13:31:13.755934395Z` |
| `x-sf-cc-instance-id` | Instance identifier (lowercase) | `zzzz_prd` |
| `x-sf-cc-site-id` | Site identifier (empty for org-level operations) | `RefArch` or `""` |
| `x-sf-cc-correlation-id` | Correlation ID for tracking across systems | `550e8400-e29b-41d4-a716-446655440000` |
| `x-sf-cc-event-id` | Event type identifier (matches the `eventType` in the payload) | `sf.cc.replication.completed` |

## Notes

- All timestamps use ISO-8601 format with timezone indicator.
- Instance IDs are normalized to lowercase.
- Site ID is empty for organization-level operations (such as process-level replication, which runs at the organization level).