SIM Lifecycle Statuses
Each SIM card in Fleet Master progresses through a structured lifecycle—from registration and assignment to return, transfer, and write-off. This section outlines the operational meaning of each status.
Overview
Every SIM in Fleet Master follows a defined lifecycle that ensures proper tracking, assignment, and disposal of telecom assets. These statuses reflect the current operational state of each SIM and control the available actions.
Lifecycle statuses support:
- Transparent SIM assignment and return
- Complete audit trail of usage
- Billing logic and service cost traceability
- Company ownership and transfer workflows
This section details each lifecycle status and outlines how a SIM transitions through different operational stages.
Status Overview Table
| Status | Description |
|---|---|
| Waiting | SIM created but pending validation. |
| Standby | SIM validated and in inventory, not yet marked for allocation. |
| Ready to Allocate | SIM is available for assignment to a fleet or project. |
| Assigned | Assignment submitted; awaiting approval. |
| Approved | SIM assignment approved and ready for execution. |
| Executed | SIM is in use and actively assigned. |
| Returned | SIM was returned and moved back to storage. |
| Transfer | SIM transferred to another ware house. |
| Company Transfer | SIM transferred to another company. |
| Write-Off | SIM marked for disposal, awaiting approval. |
Status Flow Diagram
Waiting → Standby → Ready to Allocate → Assigned → Approved → Executed
↓
(Returned / Transferred / Write-Off)
Status Details
Waiting
- Meaning: SIM created in the system but not yet verified.
- Actions Allowed: Edit details, upload documents.
- Next Step: Admin verifies and moves it to Standby.
Standby
- Meaning: SIM verified and placed in storage.
- Use Case: Holding phase before it’s needed operationally.
- Next Step: Move to Ready to Allocate.
Ready to Allocate
- Meaning: SIM is available to be assigned to a fleet or device.
- Next Step: Initiate Assignment form.
- Required Fields: Fleet, assignment date, optional notes/project.
Assigned
- Meaning: Assignment submitted and pending approval.
- Next Step: Reviewed by approver and either approved or rejected.
- Note: Marks the beginning of usage timeline.
Approved
- Meaning: Assignment confirmed by authorized approver.
- Next Step: Executed after physical handover and fleet signature.
Executed
- Meaning: SIM is active and officially in use.
- Next Steps: SIM can be Returned, Transferred, or Written Off.
Returned
- Meaning: SIM returned from a user or project.
- Next Step: Map back to a warehouse/rack location.
- Signature: Fleet sign-off is required.
Transfer
- Meaning: SIM transferred to another warehouse or entity.
- Fields: New warehouse, transfer date, optional notes.
- Audit: Lifecycle remains but under a different ownership.
Company Transferred
- Meaning: SIM transferred to another company or entity.
- Fields: New company, transfer date, optional notes.
- Audit: Lifecycle remains but under a different ownership.
Write-Off Pending
- Meaning: SIM marked for decommission (e.g., lost, damaged, expired).
- Trigger: Initiated by asset team.
- Next Step: Approval process through dashboard.
Write-Off Approved
- Meaning: SIM permanently archived and removed from active inventory.
- State: Read-only; cannot be reassigned or edited.
Status Rules Summary
| From Status | To Status | Action Required |
|---|---|---|
| Waiting | Standby | Manual validation by admin |
| Standby | Ready to Allocate | Mark as available for use |
| Ready to Allocate | Assigned | Assign to fleet/device |
| Assigned | Approved | Approval from asset manager |
| Approved | Executed | Execution with fleet signature |
| Executed | Returned | Return to storage with updated location |
| Executed | Transferred | Move to another company |
| Executed | Write-Off Pending | Initiate disposal request |
| Write-Off Pending | Write-Off Approved | Final approval from authorized user |
Best Practices
- Always validate SIM details before moving out of Waiting status.
- Use Ready to Allocate only for SIMs that are physically in storage.
- Record all Return and Transfer actions with proper warehouse mapping.
- Avoid duplicate SIM or mobile numbers by enforcing validations.