Change orders and the payment application trail

Progress claims often bill work that began life as a conversation. If the change order is unsigned, mis-referenced, or filed under a different package name, the application looks supported until someone follows the trail.

What reviewers look for

During financial audit of vendor payment applications we match claimed rates and quantities to:

• The original contract schedule
• Approved change orders with dates and signatures
• Prior cumulative billing so the same variation is not paid twice

When any link is missing, the line becomes an exception even if the work is visible on site.

A pattern from Busan fit-outs

Electrical and temporary works packages generate the most late paperwork. Contractors submit applications on the month’s last afternoon; change orders arrive the following week. Controllers who refuse to treat verbal approval as evidence save themselves from clawback arguments later.

Field habit

Require the change-order number on the application line itself. A free-text description without a reference forces reviewers to hunt, and hunting burns the days you need for arithmetic testing.