Theme features and carts

A product selector, size finder or Ajax cart can often be built into the theme. First we review the existing components and the data the feature needs. You get a preview to try before the change goes live.

At ahead, we rebuilt the entire Ajax cart. Shipping tiers, gifts, recommendations and checkout were reworked together. The result: at least €200,000 in additional annual revenue compared with the old cart.

Custom app or existing solution

Background processes, protected data and dedicated admin workflows may need an app. Permissions, operation, error handling and maintenance then belong in the scope. We also check whether an established solution already handles the job well.

Replacing an app makes sense when the alternative better fits your requirements and total cost. The monthly fee alone isn't enough to decide. The comparison of theme features, existing apps and custom development explains the options.

Integrations for everyday operations

Shopify, inventory management and shipping need clear ownership of products, stock and orders. We agree which system owns each field, how updates move between systems and what happens when a transfer fails.

At Meßmer, Sendcloud, inventory management and integrations were part of the Shopify migration work. For projects like this, we involve the responsible teams early and review the flow using an order.

What you receive

The agreed theme or app feature, first in an isolated preview.
Test cases for the normal path and important exceptions, such as missing stock or an interrupted request.
Code and short documentation covering maintenance and required settings.
A handover with clear ownership of operation and future changes.

For a wider store rebuild, see Shopify relaunch. For an individual feature, start with the store URL, one example and the systems involved.