What certifications are valued by Project Managers/Product Managers?

Question

Project management

Heard about the PMP certification.
What other certifications are there and how much are they valued?

Answer 1

Experience and client/performer base are valued. Certificates for suckers who pay for them.

Answer 2

Microsoft, Cisco, Oracle
ISO and MBA
But this is already purely on very narrow topics

Answer 3

Build a portfolio of projects, this is the main thing that employers pay attention to, certificates can only serve as a reinforcement of this experience. Without which they are just paper.