The Validate Job Re-estimation (CSTPACHK.validate_job_est_status_hook) client extension lets you override default validation for allow or disallow cost re-estimation for eAM jobs. You can modify the function validate_job_est_status_hook to implement your own logic for determining whether to allow or disallow cost re-estimation.
The Work Order Value summary form calls this function to determine if the re-estimation flag can be updated or not.
When this extension is called, the application determines if it has been implemented and returns a value accordingly. The return values are:
0 - hook is not used
1 - hook is used