# More data. The same eSIM.

Offer packages compatible with the existing profile. Review their allowance, start rule and published charge before the customer approves another purchase.

## Een tegoed dat bijna op is. Een compatibel volgend pakket.

Vergelijk een geschikte opwaardering met een aanbieding die alleen overeenkomt met de bestemming.

[Bekijk opwaarderingen](/docs/guides/esim/usage-and-top-ups)
Interactieve illustratie met fictieve gegevens. Er wordt geen accountbewerking uitgevoerd.

## Match the service. Follow the purchase.

Add an eligible package to an existing eSIM.

### Use the profile’s eligible offers.

A package covering the same country is not necessarily a valid top-up. Compatibility belongs to the allocated service and its supported offers.

### Explain when the data becomes usable.

Present coverage, allowance, validity, published amount and currency. Explain whether the package starts immediately or follows the service’s stacking rule.

### Recover an uncertain order.

Retain the original purchase reference and follow funding and fulfillment. A delayed balance observation is not evidence that the top-up failed or permission to buy it again.

[Explore eSIM top-ups →](/docs/guides/esim/usage-and-top-ups)

## Keep building with eSIM.

Read the observation, inspect the order and keep the package aligned with the trip.

[Usage See reported usage and the allowance left on a package. →](/docs/guides/esim/usage-and-top-ups)

[Order management Find the correct next step for a connectivity purchase. →](/esim-api/features/operations)

[Travel data Help a traveler choose connectivity for the trip. →](/esim-api/features/travel)

[Explore eSIM →](/esim-api)

## Schaal op zonder controle te verliezen.

Organiseer teams in werkruimtes, beheer API-toegang en traceer wijzigingen via auditlogs.

[Werkruimtes](/docs/guides/workspaces)[Teamrollen](/docs/guides/users-teams-roles)[API-authenticatie](/docs/guides/authentication)
[Ontdek Enterprise](/enterprise)

## Start with eSIM. Build across channels with Bird.

[Get Started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Fesim) · [Contact Sales](/demo?product=esim)

[Email](/email-api) · [SMS](/sms-api) · [WhatsApp](/whatsapp-api) · [Apple Messages](/apple-messages-api) · [Voice](/voice-api)



## Related resources

- [eSIM connectivity guide](/docs/guides/esim/overview) (docs)
- [What is an eSIM?](/explained/esim/what-is-an-esim) (answer)

[Get an implementation brief](/learn/workspace?topic=esim)