Choose a supplier with clear criteria. A clear objective and a realistic plan make the work easier to evaluate.
Write the brief first
Specify quantities, dimensions, materials, customisation, delivery location and deadline. Distinguish essentials from preferences.
Approve a sample
Review a sample and production proof. Keep a record of the approved version and who authorised it.
Compare responsibilities, not just prices
Check transport, payment milestones, defect remedies and delivery terms. If an intermediary is involved, disclose who pays them and what they represent.