Updates a contact's properties.
The updateContact() function returns a Promise that resolves
when the specified contact's information is updated.
Each time the contact is updated, revision increments by 1. The existing revision must be included when updating the contact. This ensures you're working with the latest contact information, and prevents unintended overwrites.
This function requires elevated permissions and runs only on the backend and on dashboard pages.
ID of the contact to update.
Contact info.
Revision number.
When updating, include the existing revision
to prevent conflicting updates.
Contact update options.