Why do I get a 'Costing rule can't be found' error when managing my project's finances?

You typically see this error when you haven't set up costing rules for labor transactions.

To resolve this issue:

1. Use the Setup and Maintenance > Manage Rate Schedules task to create a rate schedule of the type Resource Class.
2. Enter a rate schedule line for the resource Labor, select a rate set, and click Save and Close.
3. Use the Manage Project Plan Types > Rate Settings section to select this new rate schedule for the Resource Class Raw Cost Rate field, and click Save and Close.
4. Refresh rates for the project plan again, and you shouldn't see this error.