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Global data  | 
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Allow global contacts  | 
Indicates if global contacts should be allowed on the website.  | 
Automatically create global contact for user  | 
If a user is present on multiple sites, a global contact will be created for all site contacts associated with the given user.  | 
Automatically create global contact for visitors with identical e-mail addresses  | 
If there are users with the same e-mail address across multiple websites, a global contact will be created for all site contacts associated with the given user.  | 
When choosing from global contacts, select  | 
Indicates which contact should be used as the primary contact if a site visitor has multiple global contacts assigned. The following options are available: 
 •Last modified - the contact that was most recently modified. •First created - the oldest contact. •Create a new contact - a new contact will be created and the other associated global contacts will be merged into it.  | 
Allow global accounts  | 
Indicates if global accounts should be allowed on the website.  | 
Allow global contact groups  | 
Indicates if global contact groups should be allowed on the website.  | 
Allow global configuration  | 
Enables the use of global contact statuses, account statuses and contact roles on the website.  | 
Automatic merging of contacts  | 
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Merge contacts for identical E‑commerce customers  | 
Automatic contact merging will occur if multiple contacts exist for one e-commerce customer.  | 
Merge contacts for identical Newsletter subscribers  | 
Automatic contact merging will occur if multiple contacts exist for a newsletter subscriber.  | 
Merge contacts with identical e-mail addresses  | 
Contacts will automatically be merged if they have the same e-mail address.  | 
When a visitor has more contacts, use  | 
Indicates which contact should be used as the primary contact if a site visitor has multiple contacts assigned. The following options are available: 
 •Last logged contact - the contact which has the most recently logged activity will be selected. •Most active contact - the contact which has the highest number of logged activities will be selected. •Create a new contact - a new contact will be created.  | 
Additional resource can be found in Online Marketing Guide -> Contact management.