Vector artwork is the best starting point for logos, line graphics and text. It can be scaled without losing quality and makes it easier to prepare cutting, embossing and print files.
Colors should be supplied with the relevant Pantone or CMYK references. Important text and logos need to remain inside the safe area, while background graphics should extend into the bleed area defined by the production template.
If final artwork is not ready, a logo, sketch or reference image is enough for an initial review. The production template can then be supplied before final approval.