Retrieve a historical rate for an expense
Give a dated expense discussion the exchange-rate context it needs without manually searching old rates.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
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
Expense reviews take longer when the transaction date and historical rate must be checked separately.
- Look up the rate for the transaction date.
- Keep expense review context attached to the Slack discussion.
- Avoid substituting today's rate for a past transaction.
Setup
Build it in a few focused steps.
- 1Connect Slack and CurrencyScoop to Notis once through the portal.
- 2Create an automation in the portal, or tell Notis to retrieve a historical rate when an expense message states its date and currency pair.
- 3Select Channel Message Received as the trigger.
- 4Choose a channel for run reports and test with a real dated expense example.
Questions about this workflow
Should the automation use the current rate?
No. This flow is for a specified past date and uses the historical rates action.
What details make the request actionable?
Include the transaction date and currency pair in the Slack message.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to CurrencyScoop. A trigger fires from one place; an action lands in another.
Slack 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.
Slack and CurrencyScoop, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business CurrencyScoop.