You can now format numbers, dates, bytes, and percentages directly inside your CloudFlow Notification node — making Slack and email messages clearer and more professional without any extra workflow nodes.

How it works

Wrap any referenced value in double curly braces with a formatting function:

{{ format(diskSize, "#,##0.00") }}

That's it. When the notification fires, raw values like 1234.5 become 1,234.50.

Available functions

Numbers & currency — Use Excel-style patterns to add thousands separators, decimals, or currency symbols:

• format(val, "#,##0.00") → 1,234.50
• format(val, "$#,##0") → $1,234

Percentages — Automatically multiplies by 100 and adds the % sign:

• format(val, "0.0%") → 85.6%

Bytes — Automatically picks the best unit (B, KB, MB, GB, TB):

• bytes(val) → 5.49 GB
• bytes(val, 1) → 5.5 GB (control decimal places)

Dates — Parse timestamps (Unix seconds, milliseconds, or ISO strings) and reformat them:

• date(val, "yyyy-mm-dd") → 2026-02-12
• date(val, "unix") → convert back to Unix timestamp

Text — Change case:

• upper(val) → HELLO
• lower(val) → hello

Inline math — Perform calculations on the fly:

• {{ val * 5 }} → 500

Multi-value support

When a referenced field returns multiple values (e.g., disk sizes across several VMs), each value is formatted individually and joined with commas:

{{ bytes(7665791702, 6046802307, 1) }} → 7.7 GB, 6.0 GB

Resilient by design

If one expression in your message has a formatting error, only that expression falls back gracefully — the rest of your notification renders normally.

In-editor reference

A new Formatting tab in the template tags dialog gives you a quick reference of all available functions with live examples, so you don't need to memorize the syntax.