Mandatory
The Mandatory property enables you to set a field as mandatory, which means that users cannot leave a field blank while creating an entry.
Additional Resource: You can use Validation (Regex) with the title field. To know more, read our documentation.
When you set a field as mandatory, the (required) text appears beside the field on the entry page as shown below:
![mandatory.png](https://images.contentstack.io/v3/assets/blt2d43f51baca745a8/blt3a0d5e19d072d902/65cee4812cf1b62e34b54c40/mandatory.png)
Note: While you can save the entry if the mandatory fields are left blank, you would not be able to publish the entry. Refer to the Save In-progress Entry section to learn more about this.