The work cannot be counted or tested
Words such as support, pages, strategy, optimization, and revisions need quantities, formats, owners, or completion conditions.
If reasonable people could expect different outputs from the same sentence, rewrite it before pricing.
Dependencies have no owner
Missing access, content, approvals, vendor responses, and stakeholder time can stop delivery. If the scope does not assign them, the provider may appear late for a delay outside their control.
Put prerequisites beside the timeline and state their effect on dependent dates.
Money and change are disconnected
Watch for no deposit, a final-heavy payment plan, subjective milestones, unlimited revisions, or extra work that can begin without written approval.
A workable scope connects payment to progress and change to a visible price and schedule decision.