Lokalise + Slack
Keep Your Localization Teams in Sync with Lokalise and Slack Automation
Connect translation workflows to real-time team communication by integrating Lokalise with Slack on tray.ai.
Why integrate Lokalise and Slack?
Lokalise is the go-to localization platform for engineering, product, and translation teams handling multilingual content at scale. Slack is where those same teams actually spend their day. When the two run separately, important localization updates — new strings, completed translations, reviewer approvals, missed deadlines — get buried in project dashboards that most people rarely open. Integrating Lokalise with Slack on tray.ai means every meaningful event in your localization pipeline surfaces instantly in the right channel, so developers, translators, and product managers stay in sync without chasing each other down.
Automate & integrate Lokalise & Slack
Use case
Instant Slack Alerts When New Strings Are Added to Lokalise
Whenever a developer or product manager adds new translatable strings to a Lokalise project, a Slack notification goes out automatically to the relevant localization or translation team channel. Translators don't need to poll the platform for new work, and strings don't sit unassigned for days. Teams can scope alerts by project, language pair, or tag to keep things signal, not noise.
Use case
Slack Notifications for Translation Task Completions
When a translator marks a task or batch of strings as complete in Lokalise, an automated Slack message goes to reviewers, project managers, or QA team members to kick off the next stage. The handoff between translation and review is clean and visible. No more manually chasing status updates across email threads or project management tools.
Use case
Escalation Alerts for Overdue Translation Deadlines
When a Lokalise task deadline passes and strings are still untranslated or unreviewed, tray.ai sends an escalation alert to a Slack channel and tags the relevant assignees or team leads. It's the kind of proactive catch that stops a localization blocker from quietly derailing a product launch. Teams can set custom escalation thresholds — say, 24 hours before and again at the moment of breach.
Use case
Daily or Weekly Localization Progress Digests in Slack
Instead of flooding channels with individual string-level events, tray.ai can aggregate Lokalise project data and post a scheduled summary digest to a dedicated Slack channel — overall translation progress, pending reviews, upcoming deadlines across all active projects. Stakeholders get a clean snapshot of localization health without anyone needing to log into Lokalise. Digests can be scoped by team, language, or project portfolio.
Use case
Slack Alerts When Translations Are Reviewed and Approved
When a reviewer approves translated strings in Lokalise, a Slack notification goes automatically to the developer or release manager responsible for pulling the latest translations into the application. It's a clean, auditable signal that translations are production-ready, closing the loop between the localization team and engineering. No more guessing whether it's safe to deploy.
Use case
Notify Slack When a New Lokalise Project or Language Is Created
When a new project is created in Lokalise or a new target language is added to an existing one, an automated Slack message alerts the full localization team or relevant project stakeholders. This matters especially for fast-scaling companies that regularly launch in new markets. Stakeholders are in the loop from day one without anyone having to manually broadcast the news.
Use case
Slack-Triggered Lokalise Actions via Slash Commands or Workflows
With tray.ai, teams can configure Slack slash commands or Workflow Builder triggers to act directly in Lokalise — creating a new translation task, fetching the current completion percentage of a project, or reassigning an overdue task to a different translator. Slack becomes a lightweight control surface for localization operations, without needing to switch apps for routine management tasks.
Get started with Lokalise & Slack integration today
Lokalise & Slack Challenges
What challenges are there when working with Lokalise & Slack and how will using Tray.ai help?
Challenge
Mapping Lokalise Users to Slack Users for Targeted Notifications
Lokalise and Slack maintain separate user directories, and translator or reviewer names in Lokalise don't automatically correspond to Slack user IDs. Without a reliable mapping, notifications can't reach the right individuals, so teams end up falling back on channel-wide broadcasts instead of direct @mentions.
How Tray.ai Can Help:
tray.ai lets you build and maintain a user mapping table inside your workflow — either as a static lookup or pulled dynamically from an HR system or spreadsheet — so every Lokalise event reaches the correct Slack user or group with accurate @mentions and direct messages.
Challenge
Managing Notification Volume Without Creating Alert Fatigue
Lokalise projects can involve thousands of individual string events. Routing every key creation, update, or status change to Slack would overwhelm channels fast, and once people start muting notifications, the whole integration loses its value.
How Tray.ai Can Help:
tray.ai's workflow logic lets you apply filters, aggregation windows, and conditional branching so only meaningful events — task-level completions, deadline breaches, approval milestones — actually surface in Slack. Digest-style rollups can batch individual events into a single scheduled summary instead.
Challenge
Handling Webhooks Reliably Across Multiple Lokalise Projects
Teams running many Lokalise projects simultaneously need reliable event delivery from each one, but configuring and maintaining individual webhooks at scale gets brittle — especially when project structures change often as new markets and products are added.
How Tray.ai Can Help:
tray.ai provides a stable webhook endpoint that can receive events from multiple Lokalise projects at once, with built-in retry logic and error handling so no events get dropped. A single tray.ai workflow can route events from any number of projects to the right Slack channels based on configurable routing rules.
Challenge
Keeping Slack Notifications Useful Without Cluttering Messages
Raw Lokalise webhook payloads are full of technical fields that make sense to an API but are confusing or irrelevant to translators, reviewers, and project managers reading Slack. Poorly formatted notifications erode trust in the integration quickly.
How Tray.ai Can Help:
tray.ai's data transformation tools let you reshape Lokalise event payloads into clean, readable Slack messages using Block Kit formatting — bold project names, progress indicators, language flags, clickable deep links — so every notification is immediately actionable for any team member.
Challenge
Triggering Lokalise Actions from Slack in a Secure and Governed Way
Letting team members trigger Lokalise operations from Slack raises real questions about authentication, permissions, and auditability — especially in enterprise environments where only certain roles should be able to reassign tasks, create projects, or modify deadlines.
How Tray.ai Can Help:
tray.ai lets you build role-aware workflows that check the Slack user initiating a command against an allowlist or SCIM directory before executing anything in Lokalise. All actions are logged in tray.ai's execution history, giving you a complete audit trail of who triggered what and when.
Start using our pre-built Lokalise & Slack templates today
Start from scratch or use one of our pre-built Lokalise & Slack templates to quickly solve your most common use cases.
Lokalise & Slack Templates
Find pre-built Lokalise & Slack solutions for common use cases
Template
New Lokalise String → Slack Channel Notification
Automatically posts a formatted Slack message to a designated localization channel whenever new translatable strings are added to a specified Lokalise project, including the string key, source text, and a direct link to the editor.
Steps:
- Trigger: New key or string is created in a Lokalise project via webhook or polling
- Transform: Format the string key, source text, project name, and editor URL into a readable Slack message payload
- Action: Post the formatted message to the target Slack channel using the Slack connector
Connectors Used: Lokalise, Slack
Template
Lokalise Task Completed → Notify Reviewer in Slack
When a translator marks a task as complete in Lokalise, tray.ai automatically sends a direct Slack message or channel notification to the assigned reviewer, prompting them to begin the review stage with a link to the relevant strings.
Steps:
- Trigger: Task status changes to 'completed' in Lokalise via webhook event
- Lookup: Retrieve the assigned reviewer's Slack user ID from a mapping table or directory lookup
- Action: Send a direct Slack message or channel post to the reviewer with task details and a Lokalise deep link
Connectors Used: Lokalise, Slack
Template
Overdue Lokalise Deadline → Slack Escalation Alert
On a scheduled interval, tray.ai checks Lokalise for tasks or projects with deadlines that have passed or are within a configurable warning window, then posts escalation alerts to Slack, mentioning the assigned translators and project leads.
Steps:
- Trigger: Scheduled tray.ai workflow runs at a defined interval (e.g., every hour or every morning)
- Query: Fetch all open Lokalise tasks with deadlines at or past the escalation threshold
- Action: Post a formatted Slack alert per overdue task to the escalation channel, with @mentions for assignees and leads
Connectors Used: Lokalise, Slack
Template
Weekly Lokalise Progress Digest → Slack Summary Post
Every Monday morning, tray.ai pulls translation completion statistics from all active Lokalise projects and posts a structured digest to a Slack channel, summarizing per-project progress percentages, pending reviews, and upcoming deadlines for the week.
Steps:
- Trigger: Scheduled workflow fires at a configured day and time each week
- Query: Fetch translation progress statistics and task data from all active Lokalise projects via the API
- Transform and Action: Aggregate data into a structured digest format and post to the designated Slack digest channel
Connectors Used: Lokalise, Slack
Template
Lokalise Translation Approved → Notify Engineering in Slack
When strings in Lokalise are marked as approved by a reviewer, tray.ai automatically sends a Slack message to the engineering or release management channel, signaling that the latest translations are production-ready and can be integrated into the application.
Steps:
- Trigger: Key status changes to 'reviewed' or 'approved' in Lokalise via webhook
- Filter: Check that the approval threshold (e.g., all strings in a task or release bundle) has been met
- Action: Post a Slack notification to the engineering channel confirming translation readiness and including the project and language scope
Connectors Used: Lokalise, Slack
Template
New Lokalise Project Created → Slack Team Announcement
Automatically broadcasts a Slack announcement to the localization team channel whenever a new project is created in Lokalise, including the project name, source and target languages, and the project owner, so all stakeholders are in the loop from the start.
Steps:
- Trigger: New project creation event detected in Lokalise via webhook or API poll
- Transform: Extract project name, language pairs, owner, and creation date into a clean Slack message format
- Action: Post the announcement to the localization team's Slack channel with a link to the new Lokalise project
Connectors Used: Lokalise, Slack