Revisit a payment with its date-specific rate
Answer a question about a past payment using the historical rate for the day it happened.
Trigger
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Action
Get Historical Rates
Tool to fetch historical exchange rates for a specific date. Use when you need past currency rates.
Why this helps
A founder reviewing an old transaction may lose momentum searching for the rate used at the time.
- Tie a rate lookup to the transaction date in the request.
- Support clearer expense review and reconciliation conversations.
- Avoid guessing from today's rate when reviewing an old payment.
Setup
Build it in a few focused steps.
- 1Connect Slack and Fixer io to Notis once through the portal.
- 2Create an automation in the portal or ask Notis to find historical rates for payment questions in DMs.
- 3Write one instruction that uses the currencies and transaction date in the DM.
- 4Choose Direct Message Received as the trigger, select a run report channel, and test with one real dated payment example.
Questions about this workflow
Can I use today's rate for the payment?
This workflow uses the historical rates action. For today's rate, set up a latest-rate lookup instead.
What details does the request need?
Include the relevant currencies and the payment date.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Fixer io. A trigger fires from one place; an action lands in another.
Slack triggers
Fixer io actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Convert Currency
Tool to convert an amount from one currency to another. Use when you need current or historical exchange rates. Specify `date` for historical rates.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Currency Fluctuations
Tool to fetch exchange rate fluctuations between two dates. Use when you need day-to-day currency rate changes.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Get Historical Rates
Tool to fetch historical exchange rates for a specific date. Use when you need past currency rates.
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 Rates
Tool to retrieve the most recent exchange rates. Use when you need current currency conversion rates for all or specified currencies.
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 Supported Symbols
Tool to retrieve the list of all available currency symbols and their corresponding names. Use when you need to fetch and display supported currency codes.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Get Time Series
Tool to retrieve daily exchange rates for a specified period. Use when you need historical FX rates between two dates (max 365 days).
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 Fixer io, 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 Fixer io.