Automation: Set Currency on Billed projects
Purpose Whenever a Billed projects record is assigned a Client, but its Currency field is still empty, Airtable automatically copies in the client’s default currency. This ensures every project record immediately reflects the correct currency without manual selection. Instead of a lookup the currency is copied because in the future the client's default currency might change.

How it works
Detects any Billed projects record where:
- Client is not empty
- Currency is empty
Updates that record:
- Sets Currency to the name from Currency (from Client) lookup
Prompt for Airtable Omni
(Quickly create this automation via AI in your base)
text
Create an automation:
• Trigger
- Type: “When record matches conditions”
- Table: Billed projects
- Conditions:
1. Field “Client” is not empty
2. Field “Currency” is empty
• Action
- Type: “Update record”
- Table: Billed projects
- Record ID ← Airtable record ID of triggering record
- Fields to update:
• Currency ← Currency (from Client) ▶ NamePaste this into the AI Assist prompt inside Automations; Airtable will scaffold the trigger and update step for you.