3rd Party Fulfillment/Logistics:
Usually, Carro works with your existing store setup. However, there can be a bit of customization required for Carro to work with your 3PLs. The most common use case for this is retailers needing to work with their 3PL system to exclude Carro line items from fulfillment.
If any other issues arise, please contact Carro Support (Intercom or firstname.lastname@example.org) for assistance.
3rd Party Apps (Upsell, Bundling, etc):
All supplier products added to retailer's stores will behave like any other Shopify products. What this means, is that you can use partner products with any of your existing apps, simple as plug and play.