ECID generation on first-time load in server-side Adobe Target using AEP Edge Network API | Community
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nikhilbagwal90
nikhilbagwal90
Level 1
February 10, 2026
Question

ECID generation on first-time load in server-side Adobe Target using AEP Edge Network API

  • February 10, 2026
  • 1 reply
  • 10 views

I am working on a server-side implementation of Adobe Target using the AEP Edge Network API and have a question around ECID capture on a user’s very first interaction.

How does the ECID get generated and returned on the very first load in this setup?

I’d appreciate clarification or references to official documentation or best practices for first-time identity establishment when using Adobe Target server-side with AEP Edge API.

Thanks!

1 reply

Harveer_SinghGi1
Community Advisor and Adobe Champion
Harveer_SinghGi1Community Advisor and Adobe Champion
Community Advisor and Adobe Champion
February 10, 2026

Hi ​@nikhilbagwal90 ,

Adobe Edge is where the ECID is generated and the logic to generate it takes tow parameters as input,

  • Org ID: This is the Adobe Org ID for your company
  • A UUID v4 Device Identifier: This is a critical piece, you can opt to provide this value yourself (like FPID) but if you don’t then Edge seems to generate a random UUID and use

Now based on above, if you want you can control how the ECID for first time visitors is going to get generated and if it will stay same or not on the subsequent server side events. If you pass same UUID value as FPID from your side on every server side event they will always fetch the same ECID. If you don’t, every server side event will fetch a different ECID unless you read and store the ECID generated on first event and use it on all the subsequent events of that user.

Cheers!

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