SIM Tracking
Manage and track the lifecycle of SIM assets including assignment, return, warehouse mapping, fleet signatures, and document attachments. This section also covers SIM write-off history and audit trails in Fleet Master.
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Overview
The SIM Tracking module in Fleet Master enables you to monitor the full lifecycle of SIM cards from assignment to return and write-off. It ensures visibility into asset status, physical storage, and compliance documentation — helping reduce misuse, duplication, and loss of SIM resources.
SIM Assignment
When assigning a SIM to a fleet or project, the following fields are captured:
| Field | Description |
|---|---|
| Fleet | The assigned fleet's name or ID. (Required) |
| Assignment Date | Date of assignment. (Required) |
| Warehouse | Storage location of the SIM. (Required) |
| Rack / Section / Column | Warehouse mapping details. (Required) |
| Fleet Signature | Signature confirming SIM handover. (Required) |
| Assignment Notes | Additional information. (Optional) |
SIM Return
Returned SIMs must go through a defined return process:

| Field | Description |
|---|---|
| Return Date | Date the SIM is returned. (Required) |
| Condition | Condition on return (e.g., Working, Damaged). (Required) |
| Return Notes | Any notes related to return. (Optional) |
| Receiver Signature | Signature of receiver. (Required) |
Note:
Returned SIMs will move to Standby or Ready to Allocate depending on their condition.
Warehouse Mapping
Each SIM is physically stored in a mapped warehouse location, ensuring easy tracking and retrieval.

| Field | Description |
|---|---|
| Warehouse | Warehouse where the SIM is stored. (Required) |
| Rack | Rack identifier. (Required) |
| Section | Section within the rack. (Required) |
| Column | Column location of the SIM. (Required) |
Reminder:
Warehouse mapping must be configured in Attributes before SIM creation.
Write-Off History
SIMs that are decommissioned due to damage, loss, or contract termination are tracked here.

| Field | Description |
|---|---|
| Write-Off Reason | Reason for SIM deactivation. (Required) |
| Write-Off Date | Date the SIM was written off. (Required) |
| Approval Status | Status of the write-off (Pending, Approved). (Required) |
| Approval Date | Date of approval. (Required) |
| Notes | Additional comments. (Optional) |
Note:
All write-offs are recorded for future audits and compliance reports.
Attachments
Upload documents to track SIM lifecycle and accountability.

| Document Type | Description |
|---|---|
| Purchase Invoice | Proof of SIM purchase. (Required) |
| Service Contract | Postpaid plan agreement or contract. (Optional) |
| Return Condition Report | Summary on return. (Optional) |
| Write-Off Justification | Files supporting the reason for removal. (Optional) |
Note:
Files can be .pdf, .jpg, or .png and are kept secure under each SIM record.
Key Features
- Assignment & Return Tracking: Ensures SIMs are tied to fleets/projects with return validation.
- Warehouse Mapping: Clear visibility into SIM storage.
- Write-Off History: Logs all deactivated SIMs with full reasoning and approval.
- Attachment Management: Organize and secure all documents for audit readiness.
Best Practices
- Always record fleet signature during assignment and return.
- Avoid editing warehouse details manually – use transfer or return workflows.
- Upload supporting documents for every write-off to ensure transparency.
- Monitor expiry and renewal cycles to avoid service interruptions.