Slack - From Basics to Advanced Features

Why Slack mastery matters in 2026

Slack is the dominant business communication platform globally — 65+ million daily active users (Salesforce 2024), used by 77% of Fortune 100 companies. As organizations shift to hybrid and async-first work, advanced Slack skills become business-critical, not nice-to-have.

This training takes you beyond basic messaging to enterprise-level Slack mastery:

• Workspace administration at scale (10k+ user deployments)
• Security and compliance (SSO, eDiscovery, retention, audit logs, EKM)
• Process automation with Workflow Builder and Slack API
• Integrations with 2600+ apps in Slack Marketplace
• Cost optimization (Slack Pro vs Business+ vs Enterprise Grid pricing)

Slack tier comparison 2026

Feature	Free	Pro	Business+	Enterprise Grid
Message history	90 days	Unlimited	Unlimited	Unlimited
Apps	10	Unlimited	Unlimited	Unlimited
Group video calls	1:1 only	Up to 50	Up to 50	Up to 50
SSO	❌	❌	SAML	SAML + advanced
eDiscovery	❌	❌	❌	✅
Compliance exports	❌	❌	❌	✅ DLP, EKM
Pricing/user/month	0	$7.25	$12.50	Custom

For enterprise organizations (1000+ employees) the difference between Business+ and Enterprise Grid impacts compliance posture, especially under NIS2 and GDPR.

Workflow Builder — the productivity multiplier

Slack’s no-code automation tool can replace dozens of email-based processes:

Examples we’ll build during the training:

1. New employee onboarding — auto-add to relevant channels, post welcome, schedule 1:1s
2. Incident response — /incident slash command spins up channel, pages on-call, posts to status page
3. Approval workflows — request → manager approval button → auto-archive in Confluence
4. Standup automation — Tuesday 9 AM, prompt all team members for yesterday/today/blockers
5. Customer feedback — form in Slack → Salesforce ticket + Slack notification

Power users save 5-10 hours/week per team through Workflow Builder automation.

Slack API — when no-code isn’t enough

For complex integrations, the Slack API provides:

• Web API — REST endpoints for messaging, users, channels (3500+ methods)
• Events API — webhooks for real-time event subscriptions
• Block Kit — rich UI builder for interactive messages (buttons, dropdowns, modals)
• Socket Mode — WebSocket connection for apps behind firewalls
• OAuth — secure user/workspace authorization

Common API integrations we’ll build:

• GitHub PR notifications with deploy buttons
• PagerDuty incident alerts with Slack acknowledgment
• Custom HR chatbot answering policy questions
• Analytics dashboard pulling from Slack analytics API

Enterprise Grid — multi-workspace organizations

For 5000+ employee organizations, Enterprise Grid provides:

• Multi-workspace structure — separate workspaces per department/region with shared org-level admin
• Shared channels across workspaces — collaboration without exposure
• Org-wide search — find content across all workspaces
• Universal eDiscovery — single legal hold across organization
• Identity provider integration — Okta, Azure AD, Auth0 with SCIM provisioning
• DLP integration — Microsoft Purview, Symantec, Forcepoint
• EKM (Enterprise Key Management) — bring your own AWS KMS keys

Sweden enterprises using Slack Enterprise Grid: SEB, Klarna, Spotify, King, Volvo Cars, Northvolt.

Security and compliance deep dive

This training extensively covers Slack security for regulated industries:

• SSO with SCIM — automated user lifecycle, deprovisioning on termination
• GDPR compliance — data residency (EU), right to erasure, consent management
• NIS2 alignment — incident logging, audit trails, retention policies
• Audit logs API — export to SIEM (Splunk, Datadog) for security monitoring
• Information barriers — prevent communication between specified groups (insider trading, conflict of interest)
• Anti-phishing — Slack’s external user warnings, file scanning

Required Participant Preparation

• Basic Slack administration knowledge (or 1+ year as Slack power user)
• Experience in managing IT tools (Office 365, Google Workspace, etc.)
• Knowledge of information security fundamentals
• Understanding of organizational processes
• Familiarity with REST APIs is a plus (for API module)