If you want to record true historic cash flow remember to use Store Period Performance command (Tools menu) from the very beginning of your job.

Normally P3 spreads actual data evenly from the recorded actual start date to the data date. However, you can use this dialog box to have P3 store actual cost, use, and earned value for each update period. As the project moves forward, you can analyze historical data using the Resource Table or Resource Loading report. P3 displays the previous closeout date, and sets the new closeout date equal to the data date in the dialog box.

Do you want to model true job costs as an expense and Payment Berakdown as in income? What about lag between execution and chash movement? I believe for Cash Flow you need both, income and expenses. Are you going to expose confidential cost data to others that will have access to your schedule?

Well you can generate nice S curves with P3 altough as unreliable as the ones you can generate using Excel alone. The good thing about Excel curves is that they will be as unreliable but better looking.

Best regards,
Rafael

Use the Cost form or the activity columns in the Bar chart view to assign cost data to each activity.

1. To open the Cost form, do one of the following: Select an activity, click the right mouse button, and choose Activity Detail, Cost.Double-click an activity and click in the Activity form.Select an activity and press Ctrl+T.

2. To update activity costs or resource quantities, click the appropriate resource column in the form; then enter the new value and click .

If you define unit prices for resources in the Resource Dictionary, P3 automatically recalculates cost estimates based on the quantities entered in the Resources form.