Refresh historical rates after a review change
Keep review data current when a decision signal changes.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Action
Get Historical Exchange Rates
Tool to retrieve historical exchange rate data for past dates going back to 1996. Use when you need to access exchange rates for a specific historical date with a base currency.
Why this helps
Changed approvals can leave stale historical data attached to a review.
- Keep review context current
- React to changed decisions
- Reduce stale rate references
Setup
Build it in a few focused steps.
- 1Connect Slackbot and CurrencyScoop once in Notis.
- 2Create an automation describing the refresh behavior for affected review messages.
- 3Tell Notis to retrieve the historical rates requested in the message after the reaction is removed.
- 4Pick Message Reaction Removed as the trigger and choose where reports go.
- 5Test by removing the selected reaction from one real review request.
Questions about this workflow
Why use reaction removal?
It can signal that a review request needs to be revisited or refreshed.
Can the trigger be limited to one emoji?
Yes, the reaction removed trigger supports optional emoji filtering.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slackbot to CurrencyScoop. A trigger fires from one place; an action lands in another.
Slackbot triggers
CurrencyScoop actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Convert Currency
Tool to perform a single currency conversion from one currency to another for a specified amount. Use when you need to convert a specific amount between two currencies using mid-market rates.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Currencies
Tool to retrieve all supported currencies including their names and countries. Use when you need information about available currencies, either fiat or crypto.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Get Historical Exchange Rates
Tool to retrieve historical exchange rate data for past dates going back to 1996. Use when you need to access exchange rates for a specific historical date with a base currency.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Get Latest Exchange Rates
Tool to get real-time exchange rates for all supported currencies with a specified base currency. Use when you need current exchange rates for currency conversions or financial calculations.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Get Timeseries Exchange Rates
Tool to retrieve historical exchange rates for a given time period between start and end dates. Use when you need exchange rates for multiple dates in a date range for trend analysis or historical comparisons.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slackbot and CurrencyScoop, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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