1. Open the Inventry Console software.
2. Go to Personel and Click Records on the left-hand side menu.
3. Click "Filters" from the top menu, then click "Include disabled records"
4. Now serach from the member of staff that has left.
5. Select the record and Click on "Options" and the "Edit record" from the top right hand menu.
6. Now delete the DOB date from the field.
7. Save the record change and wait for it to sync.