test techniques

As the Agile environment has efficient principles that allow quick responses to changes and the ability to deal with uncertainty, exploratory testing may seem like a perfect match for such projects. However, this is only partially true. In reality, diverse reasons impede its usage in Agile projects, and companies should take them into account before designing QA strategies.

I am implementing a project using simple-salesforce so I can manage and trigger events on Salesforce Marketing Cloud. The problem I have encountered is that the documentation is not explicit if I can use simple-salesforce to access the Marketing Cloud endpoints.

I've noticed even that the login method on simple-salesforce can't be done by the Salesforce Marketing Cloud credentials. When I try to do this I get:

SalesforceAuthenticationFailed: INVALID_LOGIN: Invalid username, password, security token; or user locked out.

Did someone have the same issue? Can I access the Salesforce Marketing Cloud Certification through simple-salesforce?

What are the kind of certifications or new skills that can be learned for a Software tester with 5 years of experience. Is there any tool-based certification?

can i get a small help about selenium and scrolling the left panel only?