1. Create a workflow rule on the Work Order object: Under Evaluation criteria, select Created.Under Rule Criteria, enter Work Order: Status EQUALS In Progress.
2. Under Evaluation criteria, select Created.
3. Under Rule Criteria, enter Work Order: Status EQUALS In Progress.
4. Add a New Field Update workflow action:Under Field to Update, select Start Date.Under Date Options, select the option to use a formula and enter the formula NOW().
5. Under Field to Update, select Start Date.
6. Under Date Options, select the option to use a formula and enter the formula NOW().
7. Save and activate your rule.