Can you use Offer and a CRUD activity together?

[mielvds]

In the case where you want deltas processed by a service, you might want to indicate that it's an as:Update, but also expect an acknowledgement. Currently, an as:Accept can only be send in response to an offer.

1. Does the spec allow something like

{ 
    "@context": "https://www.w3.org/ns/activitystreams",
    "id": "http://acme.org/events/alice/0F402B08-F676-40EE-9D4B-480B3F985B65",
    "type": ["Create", "Offer"],
    ...
}

and if so, what should the rules wrt to object be?

2. Should we make any changes of clarify things in the spec?

[phochste]

In the meeting of august 24 2022 , we discussed this use case and concluded that the current spec and AS2 doesn't forbid these combinations. But, it is not a typical use case and not really in the spirit of AS2 which typically described only one activity (not I did this, that and that) with the possibility specify with an extension a more detailed activity ( 'Create' + "ArtisticCreation').