mandatory
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mandatory
Such that one is required to do something; obligatory or prescribed.
Die Teilnahme an dem Sicherheitstraining ist für alle neuen Mitarbeiter verpflichtend.
Participation in the safety training is mandatory for all new employees.
This word is derived from 'die Pflicht' (duty, obligation). The verb 'verpflichten' means to require or oblige someone to do something. 'Verpflichtend' is the present participle and is used as an adjective with the meaning 'mandatory' or 'obligatory'.
Der Vertrag verpflichtet beide Seiten zur Einhaltung der Regeln.
The contract requires both parties to comply with the rules.
To indicate for whom something is obligatory, the preposition 'für' (for) is used with the accusative. This construction is very common.
Das Tragen eines Helms ist für alle Radfahrer auf dem Werksgelände verpflichtend.
Wearing a helmet is mandatory for all cyclists on the company premises.
'Verpflichtend' (mandatory) is often combined with nouns that describe an activity or requirement. Typical examples are 'verpflichtende Teilnahme' (mandatory participation), 'verpflichtender Termin' (mandatory appointment), 'verpflichtender Kurs' (mandatory course), or 'verpflichtende Angabe' (required information).
Für den Erhalt des Zertifikats ist die Teilnahme an allen Modulen verpflichtend.
To receive the certificate, participation in all modules is mandatory.
necessary
'notwendig' and 'verpflichtend' can both express that you have to do something. 'notwendig' mainly says that something is needed for a goal or should not be missing for practical reasons. 'verpflichtend' says that there is a rule, regulation, or obligation. The words can be confused because in both cases there is often no free choice. But the reason is different: 'notwendig' comes from the situation itself, while 'verpflichtend' comes from a rule or order.
Am Abend ist die Teilnahme an der Teamsitzung verpflichtend.
Attendance at the team meeting in the evening is mandatory.
Für die lange Fahrt ist eine Pause notwendig.
A break is necessary for the long trip.