I'm Gmail user and today I stumbled upon a message that is sounds weird to me.

In Gmail when you do something, for example press Delete, you get a message like

"Your conversation has been deleted". It sounds fine to me. I mean I just deleted it and by now it is stays deleted.

90% of such messages in Gmail use "has been" as an answer to user's actions. Nearly all but one.

When I create a mail filter it says

"Your filter was created". And I can't understand it. I had been expecting "You filter has been created" construction when I pressed a button.

Whats the difference between "Your conversation has been deleted" and "Your filter was created"?

Thank you.
No significant difference. A program writer is liable to use either one.
Thank you for your quick answer.

I'd like to go further then.

AFAIR, "was" can be used if something took place in the past. But when one uses "was" that sets a status of the object he/she cannot guarantee that the status didn't change by now.

For example,

"Your message was deleted but has been recovered". In the case "Message was deleted" (if I understand the language) doesn't assure you that message wasn't recovered since then.

"The orc was wounded but has recovered". And so on.

So I've thought maybe there is slight shift of meanings or something like that. Something that I cannot catch as a non-native speaker.
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You're digging too deep. Emotion: smile

Someone neglected to proofread the messages issued by the software. They should all have had "has been", including the one with "was".

I'm not clear on why it should be 'has been', Jim. That seems to me to be only the more common option.
Mister MicawberI'm not clear on why it should be 'has been', Jim.
You mean from the point of view of meaning, I suppose.

As it turns out, I answered only from the point of view of consistency within the software system. Had 90% of the messages issued by the system had "was", I would have advised the OP that the "has been" option was inconsistent with the rest and should have been changed to "was" to match the majority.

But back to the meaning. If you've just performed an operation on your computer, the success (or failure) of the operation has the proverbial current relevance -- to my mind, anyway. So the present perfect seems, well, perfect for the situation. Nevertheless, I wouldn't get any of my garments in a twist if others were to claim a preference for the simple past in their computer-generated messages.

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Yes, my point was that I consider the only real concern - if any - is that of consistency in the text, which is only a matter of style and not correctness. It is not, after all, even a continuous text that is under consideration, but just occasional responses to user actions.