Hello. I would like to ask if in corporate emails, when you write short, concise information, prepositions are needed? For example:
Customer confirmed order.
Invoice issued.
Change introduced.
And also in cases with abbreviations:
Inv cancelled.
Is it correct?
It looks possible to my eyes.
Where do you think “prepositions” are missing?
Before the nouns or before the past participles? Are you referring to “articles”?
(The) invoice (was) issued.
Ups sorry, I confused grammatical terms 
I meant articles.
The customer confirmed the order vs customer confirmed order etc.
—Wikipedia–
I imagine that there might be some similarities in English between manuals and corporate mails.
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Thanks a lot, it makes sense.