Springer Nature is currently using ORCID in our (major) manuscript submission systems, Editorial Manager and Manuscript Central. When creating your user account or submitting your manuscript, you will have the opportunity to fetch and add your ORCID number.
In order to register a new or existing ORCID number; log into the editorial system and select 'Edit My Account' or 'Update My Information' from the menu.
Log in to your account, select 'Modify my Springer Nature Account', then click 'Create/Link an Open Researcher Contributor ID'. This should open a pop-up window from ORCID/NPG asking you to register for an account - if you select 'Sign in' in the top right hand corner, next to 'Already have an ORCID id?', you should be able to login and thus link your profile and ORCID.
For more information see: