To create the REGON numbers database there is " REGON numbers database" functionality in the "Dictionaries" submenu in the "Administration" menu, where is presented a list of REGON numbers entered into the database. At every REGON number on the list there is the corresponding name of entity and the buttons of removing or editing the entity and below the list is a button adding a new REGON number.

Each of mentioned buttons directs to form of REGON number.

After completing the form or making changes save data by button specific to particular form.