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Identity Linking - Shared Devices

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I've been asked about three scenarios for linking activities and identities:

 

1. One person uses multiple devices

2. Two people use one device

3. Two people share two devices

 

I'm aware that two and three are edge cases, but the client wants to know. My understanding based on reading about how Identity Service works is that:

 

1. Identity service will understand this is the same person and link activity to the same Identity Profile

2 and 3. Logged in activity will be properly attributed to the right identity, but anonymous activity, no idea what will happen. Will it get linked to both identities? Will it go with the most recently logged in identity? What the heck happens?

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1 Accepted Solution

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Correct answer by
Employee

Hello @GitaiBe1 

 

With this scenario it comes down to how you define the identity fields of the data which is being collected.

 

If we assume the person and the device are identity values we would have a profile of the following for 1 person identifier with two devices.

 

  Identity  
person A  
device 1 2

 

Two persons using the same device if both personId and device are identity fields:

 

  Identity  
person A B
device 1  

 

2 persons sharing the same device would result in the following profile:

  Identity  
person A B
device 1 2

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3 Replies

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Correct answer by
Employee

Hello @GitaiBe1 

 

With this scenario it comes down to how you define the identity fields of the data which is being collected.

 

If we assume the person and the device are identity values we would have a profile of the following for 1 person identifier with two devices.

 

  Identity  
person A  
device 1 2

 

Two persons using the same device if both personId and device are identity fields:

 

  Identity  
person A B
device 1  

 

2 persons sharing the same device would result in the following profile:

  Identity  
person A B
device 1 2