Question 33 - AD0-E207 discussion

Introduction: The requirement is to use a value in both a prop (for pathing reports) and an eVar (for persistence) while minimizing the size of the server call.

Explanation of Methods:

A . A VISTA rule to copy the prop value to the eVar:

VISTA (Visitor Identification, Segmentation & Transformation Architecture) rules are server-side rules that can copy values between variables. However, they are complex, incur additional costs, and do not reduce server call size.

B . s.eVar1 = s.prop1:

Directly setting the eVar value to the prop value in the code is straightforward but does not minimize the server call size as both values are separately included in the request.

C . s.eVar1 = 'D=c1':

This method uses dynamic variable substitution, which reduces the server call size by referencing the prop value (c1) directly in the eVar without duplicating the data in the request.

Verification: Check the Adobe Analytics server call in the Network tab to confirm the reduced size.

D . A processing rule to copy the prop value to the eVar:

Processing rules can be used to copy values server-side, similar to VISTA rules but without the additional cost. However, this approach does not minimize the server call size.

Detailed Steps:

Dynamic Variable Substitution:

Set the eVar value to reference the prop value using the syntax s.eVar1 = 'D=c1'.

This tells Adobe Analytics to dynamically substitute the value of c1 (prop1) into eVar1 without sending redundant data.

Example:

s.prop1 = 'exampleValue';

s.eVar1 = 'D=c1';

Benefits:

Reduced Server Call Size: By using dynamic variable substitution, the server call payload is smaller, optimizing data transmission.

Efficient Data Handling: The value is captured once in the prop and referenced in the eVar, maintaining efficiency and persistence.

References:

Adobe Analytics Implementation Documentation: Dynamic Variable Substitution

Adobe Analytics Network Call Analysis Guide: Understanding Server Calls

By using s.eVar1 = 'D=c1', the Architect achieves the goal of collecting the value in both a prop and an eVar efficiently while minimizing the server call size.