In order for the system to associate your offer on Yandex.Market with the product profile, you must specify:
whether it includes a lens (body or kit) and the focal length of this lens (for cameras with a removable lens)
All these parameters are required and they must be specified in the product offer title. It is preferable to use the terms designated by the manufacturer.
Model was omitted.
The Canon PowerShot product offer will not be recognized by the system because the offer title does not specify the model. The correct offer name looks like this:
Canon PowerShot A720 IS
Parameters are incomplete.
Canon EOS 450D EOS 450D 18-55 IS Canon EOS 18-55 IS
The Canon EOS 450D model is offered with a lens (kit) or without (body). The offer title must contain the type of set (body or kit, with the focal length). In place of the "kit" designation, you can specify just the focal length. The offers Canon EOS 450D and Canon 450D will be recognized as "Canon EOS 450D body".
Offers such as EOS 450D 18-55 IS or Canon EOS 18-55 IS will not be recognized because of incomplete information.
Correct offer titles look like this:
Canon EOS 450D 18-55 IS Canon EOS 450D kit 18-55 IS Canon EOS 450D body Canon 450D 18-55 IS Canon 450D kit 18-55 IS Canon 450D body