# Investigate an incorrect expectation

Read a real failed proof where an expected age was entered incorrectly. Resolve the requirement and case data before seeking approval.

Source: https://help.smartfact.ai/automation/guides/configsheets-validity-failed

Audience: Author

Read a real failed proof where an expected age was entered incorrectly. Resolve the requirement and case data before seeking approval.

## Investigate an incorrect expectation

1. **Find the failed check**

   Find the failed check

   This retained proof did not pass. Do not change its expected answer merely to obtain a pass.

2. **Compare the retained inputs and results**

   Compare the retained inputs and results

   The first case expects 298 seconds, but its entered original and evaluation times are 299 seconds apart. Investigate the discrepancy.

[Watch or practise this chapter](https://help.smartfact.ai/automation/demo?guide=configsheets-validity-failed&chapter=complete-work&audience=office)

Keep the failed evidence. Correct an expectation only after checking the requirement and original facts, then run a new proof.