Review past ad spend with historical rates
Use the rate from the campaign date to make an old advertising expense easier to review.
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 Rates
Tool to get historical exchange rate data for a specific date. use when you need past currency rates for all or selected currencies.
Why this helps
Past campaign costs are hard to assess when current exchange rates obscure what the spend meant at the time.
- Retrieve a rate for the stated campaign expense date.
- Review historical marketing costs with relevant currency context.
- Keep finance follow-up linked to the campaign discussion.
Setup
Build it in a few focused steps.
- 1Connect Slack and Fixer to Notis once through the portal.
- 2Create an automation in the portal, or ask Notis to retrieve historical rates for dated ad spend in Slack.
- 3Write one plain-language prompt asking for the historical rate on the spend date and the stated currency pair.
- 4Select the Slack channel message trigger and a run-report channel, then test with one dated campaign expense.
Questions about this workflow
Does this retrieve the campaign's spend amount?
No. It retrieves historical exchange-rate data. The expense amount must be present in the conversation if you want Notis to include it in a requested calculation.
Can this use a campaign date instead of a transaction date?
Ask Notis to use the date that the message identifies as relevant to the spend and report if it is unclear.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Fixer. A trigger fires from one place; an action lands in another.
Slack triggers
Fixer actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Get Historical Rates
Tool to get historical exchange rate data for a specific date. use when you need past currency rates for all or selected currencies.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Latest Exchange Rates
Tool to get real-time exchange rate data for all available or specified currencies. use when you need current forex rates before performing currency conversions.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Get Supported Symbols
Tool to retrieve all supported currency symbols and their full names. use when you need to display or validate available currencies before performing conversions.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
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 Fixer, 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.