1. Planning.

• Assessment
  Start by pinpointing who necessitates Salesforce access, what resources they need, and the reason behind it. Review existing access rights and ascertain if they can be reduced or removed. Consider utilizing an entitlement discovery tool for improved visibility.
• Policy creation  
  Establish clear rules for both allocating and revoking access. Provide instructions about who can request access, under what conditions, and for what length of time. Particularly for privileged roles, establish time-limited parameters.
• Source of truth  
  Align your Salesforce JIT access system with an Identity Provider such as Okta, Google Workspace, Azure AD, or OneLogin. This will act as the ultimate source of truth for identities. Transitioning individual identities over shared accounts will offer better authorization control and audit precision.

2. Execution.

• Self-serve access requests  
  Simplify the procedure by allowing users to request access via the system, not people. Improve uptake by integrating with IM platforms like Slack or MS Teams. Ensure requests include details such as requester's identity, needed service/resource/role, duration, and reason.

• Approval process  
  Salesforce JIT access offers a chance for organizations to delegate approvals to personnel with business context. Resource owners and business unit managers often have more context than IT helpdesks. Use messaging platforms for accelerated responses, providing approvers with all necessary information for a well-informed decision.

• Conditional approval workflows  
  Incorporate predefined policies into workflows that regulate access permissions. These can be embedded into workflows that determine who can access what, and under what conditions. A practical approach is to establish if-then rules: IF identity group “X” requests access to “Y”, require approval from “Z” and inform “M”.

• Integrations
  Consider integrating JIT access with other IT and security systems for increased flexibility; Synchronize with IT ticketing systems for automated access based on the ticket status. Connect with data classification systems to modify policies depending on data sensitivity. Ideally, be capable of tagging resources and bundling them together can simplify the process. Collaborate with on-call schedule software for automated approvals during emergencies. Use training programs to allocate access according to training completion.
• Automated provision and deporvision
  Gain a thorough understanding of Salesforce to effectively grant and revoke access automatically within the service. This is vital for JIT access as it reduces reliance on people's availability. It facilitates automatic deprovisioning of access, which is central to JIT access and the principle of least privilege access (POLP). Ideally, you should manage all permissions in one place, eliminating the need to build or manage an environment for every application in your organization.
• Access methods
  For Salesforce JIT access, APIs are preferred due to their adaptability and real-time capabilities. However, a combination may be necessary. For instance, employing SAML for authentication, SCIM for user provision, and APIs for detailed access control decisions.

3. Maintenance.

• Regular Audits
  Routinely scrutinize access logs to confirm that JIT access is operating as expected. Look for any abnormal patterns or activities either directly or by feeding the logs into your SIEM. Automate the user access review process to expedite evidence collection, delegate reviewers, and ensure your system aligns with relevant industry standards.
• User Training
  Instruct users, particularly privileged ones, about the significance of least privilege, JIT access, and how it functions. Guarantee users understand how to request access when necessary.
• Feedback Loop
  Maintain a constant review of your Salesforce JIT access procedures. Solicit feedback from users and IT personnel to comprehend where enhancements are required.

By abiding by this structured method, you'll be able to competently implement a sturdy Just-in-Time access system for Salesforce.