EssentialFields
Possible Values: Title, Author, Editor, Ressort, Subressort, Program, Broadcast, BroadcastDate, Source, Registration, DeleteDate, GenericTitle, Motive, Customer, Composer, Performer, Album, Label/Carrier, MusicID, Mediumname, Keywords, Distribution, Recordplace, Musictype, Mediumtype, Style, Remark.
NEW since DBM 6.0.8389.0: Category, LinkIn, LinkOut.

This parameter is evaluated by the Database Manager. Whenever a new database is created in DBM, or when an existing database entry is edited in DBM, and any field from this parameter is not filled in, an error message is displayed, and the entry cannot be saved unless the fields are set.
If the "CheckFieldsAfterDrop" parameter is set to TRUE, then these fields are also checked when an entry is copied across tables.

Separate values by non-alphabetic characters like whitespace, commas, vertical bars, semicolons.

To make custom fields essential, use the "EssentialFieldsEx" parameter.

Essential fields can also be defined per table in the "Digas|Database|SERVER|TABLE|EssentialFields" parameter. Per-table essential fields overwrite DBM-global essential fields.
Possible values:
Default value: