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Hi,  Follow these steps to reschedule your Salesforce certification exam.

1. Sign in to your Trailblazer profile on Trailhead Academy.
2. In the Upcoming section of the homepage, find the exam you want to reschedule.
3. Select the exam to open the appointment confirmation page.
4. On the appointment confirmation page, select the Modify Registration button.
5. Pearson VUE opens. Choose the option to reschedule or cancel your exam.
6. Follow the prompts. Confirm your time zone and change the exam date and time in the Pearson system.
7. After rescheduling, you will receive an email confirmation at the address linked to your Trailblazer profile.

https://help.salesforce.com/s/articleView?id=005298917&type=1

Hi Jim, sorry to hear about the near-miss — sounds like it was close. 

Good news: Productivity and Collaboration is officially only 7% of the exam (per the Salesforce Admin Exam Guide), so it's a small, well-defined target, not something you need 138 modules for. It covers exactly four learning objectives: 

- Activity Management (Tasks, Events, activity reminders/reports) 

- Chatter (feed, groups — public/private/unlisted, following, security) 

- Salesforce Mobile App capabilities 

- AgentExchange/Agentforce use cases 

That last bullet explains why Agentforce and Productivity/Collaboration are both weak spots for you at once — Salesforce folded AgentExchange/Agentforce use-case questions into this same exam section on the current version of the guide, so it's really one combined content area, not two separate ones. 

Best single resource: the official Trailhead module "Study Up on Activity Management and Collaboration" — it's built specifically to prep this exact exam section (not general Trailhead content), and includes scenario questions and flashcards on Chatter, activities, and mobile app capabilities: 

Since you've already done beginner/intermediate + general exam prep, this targeted module (30–45 min) plus the flashcards should be enough without re-covering ground you already know — focus your remaining study time on Configuration & Setup and Security & Access instead, since those carry roughly double the exam weight of Productivity and Collaboration and are worth more of your remaining prep time per point.

Good morning - you are asking about several separate different Tableau funamental functions - I recommend you see the series I wrote for New to Tableau users https://jimdehner.com/bgs-beyond-getting-started-the-path-to-understanding-tableau/   - it is a 13 part (yoiu can pick and choose among the topics)  it is also on Youtube - see the playlist https://www.youtube.com/playlist?list=PLBKGe-fkLXxt5gycYDP_F-Y7MHj0GczJp  and then attend the Tableau Newbie User Group - https://usergroups.tableau.com/tableau-newbies-user-group/  - our theme this year was the "Road to Certification" you can pick up any misses session from the recording link at that site and sign up for our next meeting on October 6th