---
schema_version: "1"
id: 2c4ee9d4319bf1873579ef1451105edab9bad9f9c3dd126feab6007fc3d5c775
title: Upgrade FAQs
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_co_upgrade_faqs.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_co_upgrade_faqs.htm&release=264.0.0&type=5
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content_type: documentation
content_hash: 04b325df9f769479ab30377f86ccd90bf53df6610a5c653783a55f2707a9a935
description: Answers to your questions about Marketing Cloud Connect for Marketing Cloud Engagement upgrade.
products:
  - Marketing
  - Cross Cloud
release: "264"
---
# Upgrade FAQs

Answers to your questions about Marketing Cloud Connect for Marketing Cloud Engagement upgrade.

## How Long Does It Take to Upgrade from v2 to Marketing Cloud Connect?

Upgrading v2 to Marketing Cloud Connect is mostly self-service. Expect a 2–3 hour send outage for all sends to Salesforce recipients including reports, campaigns, contacts, leads, and Salesforce data extensions.

## How Long Does It Take to Upgrade from v3 to Marketing Cloud Connect?

Marketing Cloud Connect is typically installed in 1-2 hours without migrating historical tracking data. If historical tracking data is migrated, the process can take an entire day. An internal Salesforce service team performs the upgrade.