Taken from a supplier;
Depending on the make of car and the functionality of the respective system (open or closed), modern vehicles with Battery Energy Management (BEM) may or may not require or recommend that the new battery be registered.
If the new battery is not registered, error messages from the on-board computer may occur and comfort applications may not work or may only work to a limited extent for a short period of time. Displayed error messages can usually be reset by deleting the error memory. If the new battery is registered, it usually takes a few days for the system to detect the new state of the battery and reset the error messages automatically.