Materials are on site and we're not being paid for them
Delivered, stored, at our risk, and outside the valuation.
What's happening?
The materials arrived, the supplier's invoice will not wait, and the valuation ignores them - either because the contract's conditions for paying unfixed materials were never met, or because nobody presented them in a form the certifier could safely pay. Meanwhile they sit at your risk: paid for upstream, unpaid downstream, funding the gap.
Certifiers pay for materials they can verify and that would hold their value if things went wrong: properly stored, identified to the contract, insured, listed. A materials-on-site schedule does exactly that presentation - description, quantity, location, value and evidence, application by application - so the certifier's easy answer becomes yes. Where the contract simply doesn't provide for unfixed materials at all, that is worth knowing before the next big delivery lands rather than after.
The solution
The stock presented so it can actually be paid.
If you would rather it were done for you, Payment Application Assembly & Issuance is the service that does it.