1. Navigate to Setup > Import/Export > Import CSV Records
2. Import type: Select Relationships
3. Record Type: Click Projects
4. Select the CSV File to upload.
5. Click Update button.
6. Field mapping:
- ID: Job: ExternalId
- Internal ID: Job: Internal ID
- Accounting Period: Job Percent Complete Override 1 : Accounting Period
- Cumulative Percent Complete: Job Percent Complete Override 1 : Cumulative Percent Complete.
7. Import Map Name: Enter any name value
8. Hit Save andRun.