eingeleitet
initiated
Describes a process, action, or measure that has been begun or started.
Die sofort eingeleiteten Rettungsmaßnahmen waren erfolgreich.
The rescue measures initiated immediately were successful.

initiated / channeled
Loading your saved state.
initiated
Describes a process, action, or measure that has been begun or started.
Die sofort eingeleiteten Rettungsmaßnahmen waren erfolgreich.
The rescue measures initiated immediately were successful.

'Eingeleitet' (initiated / channeled) is the past participle of the verb 'einleiten' (to begin, to lead into). It is used like an adjective, usually before a noun, to describe it.
Das eingeleitete Verfahren kann nicht mehr gestoppt werden.
The initiated procedure can no longer be stopped.
The context reveals the meaning: if people are talking about abstract things like 'Maßnahmen' (measures) or 'Verfahren' (procedures), it means 'begonnen' (begun). If they are talking about substances like 'Abwasser' (wastewater), it means 'hineingeführt' (led into).
Die eingeleiteten Schritte zeigten schnell Wirkung.
The initiated steps quickly had an effect.
In the meaning 'begonnen' (begun), 'eingeleitet' often appears with nouns from formal contexts such as government, law, or medicine. Typical examples are 'eingeleitete Maßnahmen' (initiated measures), 'eingeleitete Ermittlungen' (initiated investigations), or 'ein eingeleitetes Verfahren' (an initiated procedure).
Die von der Regierung eingeleiteten Reformen sind umstritten.
The reforms initiated by the government are controversial.
completed / locked
'abgeschlossen' and 'eingeleitet' describe different points in a sequence. 'eingeleitet' means that a process or measure has been started. 'abgeschlossen' means that the process is finished. So the contrast is between beginning and end. Both words are often used with measures, investigations, proceedings, or projects.

Nach dem Unfall wurden sofort neue Sicherheitsmaßnahmen eingeleitet.
After the accident, new safety measures were initiated immediately.
Die Untersuchung wurde nach drei Wochen abgeschlossen.
The investigation was completed after three weeks.