This is the page where you check your work, and the dataset.

The Check Configuration tab compares your data structure with that of the project’s Target Model to see if all expected data types are present. The Options tab allows you to change the parameters of the Validation process, including which tests to run, and if they should be run on a random sub-set of the data (faster, best if you suspect that the project isn’t complete yet), or all of it (slower, but essential to do, and to pass, before deploying the data into SEAD) The Run YAML Validation tabs checks the project’s YAML for errors the Run Data Validation tab checks the data itself for issues.