On Business booking instructions for travel agents using a CRS booking system
When you make a booking for a member company on a British Airways eligible flight, you will need to enter the On Business membership number following the instructions below:
The On Business number must be entered in an OSI field using one of the following entries (please leave spaces between letters where shown)
| Amadeus entry | SK BTOB BA-/123456GB |
| Galileo entry | SI.BA*BTOB./123456GB |
| Sabre entry | 3OSI BA BTOB./123456GB |
| Worldspan entry | 3OSI BA BTOB./123456GB |