We are using the alias in the patron record in Sierra (field group tag c). This field group is indexed in the barcode-index, and patrons can use the alias for logging in to the patron account. The alias can also be used for logging in to the computers at the libraries and also for checking out e-media.

Setting/changing the nickname in Vega has no correlation to the alias in Sierra and only works for logging into Vega.

We fear this might be a bit confusing for our patrons.
So we think changing the nickname in Vega should also insert/update the alias-field in Sierra.