Here is a standard url to access the StagingPro app
https://store-<storehash>.mybigcommerce.com/manage/marketplace/apps/40436
Substitute the relevant store hash on this secure Marketplace App url and you will gain access to view the StagingPro app for install
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Upon signup of the License Agreement, BigCommerce will be provisioning the environments and installing the App on your Staging Website. This usually takes 2-3 working days.
To view our onboarding steps, please access the following article → StagingPro Onboarding