How to parametrize the Target URL on a A/B test for different personalized variations and what are the best practices ?

[guruanand]

The questions are

1. How to parametrize the Target URL on a A/B test for different personalized variations

2. What are the best practices for Personalized content variations to work with A/B test without impacting the SEO scores

3. Best practices that has actually worked across multiple Industries for Personalized target variations.