Scope and inputs to reconcile
Distinguish measurable missing scope, uncertain installation conditions and pricing uncertainty. A stated quantity allowance is different from a general contingency reserve.
Workflow and checks
List each risk, the affected cost category, the information needed to resolve it and the person responsible for review. Revise or retire the allowance when that information arrives.
What the output should show
Keep a risk/allowance register linked to the cost summary, with the basis and included scope stated beside each allowance.
Exclusions and unresolved decisions
A contingency does not cover every future change or establish who bears a contractual risk. Avoid adding escalation both here and in supplier pricing.
Documents to share for a quote
Provide design stage, unresolved RFIs, site information and the budget rules required by the project team.