# Go-Live checklist
source: https://developer.mastercard.com/unified-installments/documentation/experience-design-guide/installments-solutions-for-existing-cards/prepare-for-launch/go-live-checklist/index.md

### Why a checklist? {#why-a-checklist}

We realize that the Experience Design Guide provides a lot of information for your teams to digest. By including a Go-Live checklist, we help you cover all the bases before launching to your customers.

## Understand {#understand}

> Get a solid understanding of how the pre-approved offer in the lender app works.  
>
> **How?**   
>
> Read our [Introduction](https://developer.mastercard.com/unified-installments/documentation/experience-design-guide/index.md) section.

## Design {#design}

> Get to know the Moments that Matter or the key points in the product journey for the user.  
>
> **How?**   
>
> Study the highlights in the [product journey](https://developer.mastercard.com/unified-installments/documentation/experience-design-guide/installments-solutions-for-existing-cards/moments-that-matter/index.md).
> Get familiar with our detailed user experience (UX) journeys.  
>
> **How?**   
>
> View the [UX journeys](https://developer.mastercard.com/unified-installments/documentation/experience-design-guide/installments-solutions-for-existing-cards/index.md).
> Get a refresher on how to support the Mastercard brand.  
>
> **How?**   
>
> Familiarize yourself with our [brand implementation guide](https://www.mastercard.com/brandcenter/en/home).

## Prepare for launch {#prepare-for-launch}

> Get guidance on setting up your pre-market consumer testing plan.  
>
> **How?**   
>
> Download and review our testing plan.
> [Installments-Testing-Plan.pdf](https://static.developer.mastercard.com/content/unified-installments/uploads/Installments-Testing-Plan.pdf) (53KB)  

Next: [Resources](https://developer.mastercard.com/unified-installments/documentation/experience-design-guide/installments-solutions-for-existing-cards/resources/index.md)