Productivity
Build a change order packet
Time and materials documented well enough to be paid.
Fill it in
What was asked for and when.
Labour, materials and photos, at the time.
Money and days are separate claims.
Your prompt
Build the change order packet. [the change] Attach the backup CONTEMPORANEOUSLY: daily labour with names and hours, material tickets, and photographs with dates. Most subcontractors lose these claims not because the work was not done but because it was documented three weeks later, which is when it stops being evidence. Quote the contract clause that entitles you to the change, and the direction that caused it, with who gave it and when. State the schedule impact SEPARATELY from the cost. Time and money are distinct claims, and a packet that folds delay days into a lump sum forfeits the extension. Submit within the notice period the contract specifies. Late is the other way these are lost.
Use Build a change order packetOpens with everything above already filled in.
Why this works
Most subcontractors lose these claims not because the work was not done but because it was documented three weeks later, which is when it stops being evidence. This attaches contemporaneous backup and separates the schedule claim from the cost claim.