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Validations on date components display in US date format: "mm/dd/yyyy". For example, if the system language is set to English (United Kingdom) / en_GB, and an invalid date is passed, the built-in validation is triggered and the following error message is displayed:
"mm/dd/yyyy"
The value XX/XX/XXXX is not a valid date. Valid format is mm/dd/yyyy.
The expected en_GB date format should be: "dd/mm/yyyy". This is currently the behavior for all languages.
"dd/mm/yyyy"
This issue has been addressed via AN-84725 in the latest set of hotfixes.
Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.
This article applies to Appian 18.1 and earlier.
Last Reviewed: November 2019