Start with the viewing situation
Before opening a canvas, decide where the cup will be seen and what the person holding it should remember. A café customer walking to work sees a different context from a guest at a wedding reception. Write one primary message and identify the audience. This gives you a way to judge later design choices: each element should support the brief rather than simply fill a space. Gather the authorised logo, required wording and any relevant brand guidance before making a polished layout.
Build a deliberate hierarchy
Place the most recognisable element first, then add a short supporting message. Treat a code, a date or a website as a separate decision with a clear purpose. Do not make every item equally prominent. Check the artwork at ordinary reading size, because small text can look convincing when a screen is zoomed in. Keep important content away from the seam and safe-area boundary. A decorative detail should not become the only place where a person can discover essential information.
Check the taper and the source files
A tapered cup does not use a simple rectangular wrap. Work with the confirmed geometry for the intended product and compare the flat, curved and three-dimensional views. Imported images need enough detail for their placed size, while outlined vector artwork has different checks from a screenshot. Keep the original files available. If your source contains fonts, unusual effects or a PDF page, review the upload guidance and ask the printer how those features will be handled in the actual production process.
Make approval a documented decision
Ask someone other than the designer to check spelling, dates, identity and any link destination. Give the reviewer the intended quantity and product context so they know which version they are assessing. Save the final revision with a meaningful name. A proof approval records a decision about that version; it does not automatically approve supplier geometry, material suitability, a colour profile or a manufacturing file. Resolve those checks independently and do not treat a realistic screen rendering as evidence that they have passed.
Use a final review checklist
Check logo permission, exact wording, readable type, contrast, seam placement, image detail and the usefulness of the next step. Open every code or URL on an ordinary phone. Compare the selected size with the actual service requirement and confirm accessory compatibility with the supplier. Keep one person responsible for consolidating feedback. If a reviewer changes the content after approval, issue a new version instead of silently replacing the file that someone already accepted. That habit protects both the customer and the production team.