Sharepoint designer workflow update current item from lookup list based on current lookup field
1. Create new custom list "Provinces". Rename Title to ProvinceID. Create new field ProvinceName (single line of text)
2. Create new custom list Employees. Rename Title to FullName. Create new field ProvinceID lookup to list Province and return ProvinceID. Create new field ProvinceName (single line of text)
3. Create new workflow (list workflow)
4. Insert action Update item and configure like image below. Then configure workflow setting is "start workflow automatically when an item is created" and start workflow automatically when an item is changed. Then publish workflow.
5. Create new item and leave ProvinceName
6. Workflow auto update ProvinceName.
Done.
