Enum is a data type in programming, whose set of values ​​is a limited list of identifiers. In short, Enum is a datatype for categorizing named values. They can be used in a wide variety of locations. For example, instead of hard-coding blog post statuses, they can be moved into a separate Enum class.

In my work, I try to adhere to such a principle that the code is minimally dependent on the framework. So that it can be quickly transferred to another engine if necessary. To do this, we must be minimally tied to concepts such as Model or Request.

Vtiger 7.3 has one great feature - checking records for duplicates before saving or changing. It works as follows - you go to the module settings (field management), in it you will have access to the "Duplicate Management" or Duplicate Prevention tab. When you go to this tab, you can specify the fields that you will check before saving.

Vtiger 7.3 brought us many performance and functionality improvements. Among other things, an interesting feature has been added - in the settings of an individual user, choose which page to open by default after authorization. Previously, this could only be done globally from the system settings.

After long improvements and bug fixes, Vtiger developers have released a new version of the CRM system - 7.3. This version includes a number of improvements, new functionality, bug fixes in the interface and a number of security fixes. Also version 7.3 is fully compatible with PHP 7.4.