# Segment Operations
source: https://developer.mastercard.com/benefit-allocation-service-mtls/documentation/use-cases/segment-operations/index.md

### Scenarios {#scenarios}

#### [Assign Segment](https://developer.mastercard.com/benefit-allocation-service-mtls/documentation/use-cases/segment-operations/assign_segment/index.md) {#assign-segmenthahahugoshortcodes0hbhb}

* Assign a segment effective today when the card has no active segment (most common use case)
* Assign a segment with a future effective date when the card has no active segment
* Assign a segment with a past effective date when the card has no active segment or overlapping prior segment dates
* Assign a segment that includes a bundle with a future expiry date

#### [Replace Segment](https://developer.mastercard.com/benefit-allocation-service-mtls/documentation/use-cases/segment-operations/replace_segment/index.md) {#replace-segmenthahahugoshortcodes1hbhb}

* Replace an existing segment effective today after a successful prior assignment (most common use case)
* Replace an existing segment with a future effective date
* Replace an existing segment with a past effective date after a successful prior assignment
* Replace a segment that includes a bundle with a future expiry date

#### [Cancel Segment](https://developer.mastercard.com/benefit-allocation-service-mtls/documentation/use-cases/segment-operations/cancel_segment/index.md) {#cancel-segmenthahahugoshortcodes2hbhb}

* Cancel a segment that was previously assigned successfully (most common use case)