public void setValidationMessage(String validationMessage) {
        this.validationMessage = validationMessage;
    }
<p>
The validation message to display.
</p>

@param validationMessage
       The validation message to display.
aws-java-sdk-amplifyuibuilder/src/main/java/com/amazonaws/services/amplifyuibuilder/model/FieldValidationConfiguration.java