Check
Rule
Dates not in ‘Month DD, YYYY’ format
10/07 is July to half your company and October to the other half. Spelling out the month ends the argument before it starts.
The prompt
Flag any date not written as ‘Month DD, YYYY’, for example ‘October 15, 2026’. Numeric forms such as ’10/15/26′ or ’15/10/2026′ and abbreviated months such as ‘Oct 15’ are violations. A day name in front, ‘Thursday, October 15, 2026’, is fine.
Works in
ConfidenceCheckHow to use
If your standard is 'DD Month YYYY', swap the example and the flagged forms. Whatever you pick, include a numeric example the check should reject.
Where: Settings → Email Settings → Custom Check (Owners and Admins)
In packs: The starter twelve · People and HR team · Regulated industry · Global and multi-region · Frontline and operations
The prompt
Flag any date not written as ‘Month DD, YYYY’, for example ‘October 15, 2026’. Numeric forms such as ’10/15/26′ or ’15/10/2026′ and abbreviated months such as ‘Oct 15’ are violations. A day name in front, ‘Thursday, October 15, 2026’, is fine.