User/custom data in advertising packets?

[sd]

The BTLE specification does allow user/custom data to be added to the advertising packets. Which field in the advertising data structure is the right place for adding such data? I'd like to avoid hacks, so prefer to do it only where appropriate.

[Pål Håland]

The best place to add user/custom data is in the field Service Data (GAP 11.1.10) if you have a 16bit UUID service or in the Manufacturer Specific (Data GAP 11.1.4) if you have a 16 bit company identifier

[Somesh Burkule]

Hi,

Is it possible to make custom service and advertise instead of Manufacturer Specific Data? we don't have 16bit company identifier.