Will the custom settings be deleted after the hearing care professional makes adjustments to the hearing aids or will they remain saved in the app?
This is dependent on the model of hearing aid(s) in use.
The custom programs will be deleted if Audéo M or Audéo B-Direct hearing aids are used. The Custom Programs will need to be re-created and modified in Advanced settings which can be accessed by pressing "Adjust program" in the Home section.
With other hearing aids all the Custom Program will remain available except for those related to base programs that have been either deleted or modified by the hearing care professional during the fitting session.
Please refer to the hearing care professional if the model of the hearing aid is unknown.