A shop needs a cart, payment and stock. A company site explains the job a buyer will ask about. If the buyer asks for a price without putting anything in a cart, the first release should not be a shop. A shop is not a fancier company site. It is a different job.
When the price is discussed
Sales calls, asks for a measure, writes a timing and says the price in the conversation. In that job the cart is not the step the buyer takes. The page introduces the product and keeps a form or a button open. If the price is not public, a payment screen is not required. The first release is the page that shortens the conversation you already have. A cart that removes the conversation becomes a door sales does not use.
When a cart is the first release
The shop is the right job when many small orders, a public price, same-day dispatch from stock and a returns rule are real. Payment, tax and shipping are written then. A shop opened without them is an empty window. The visitor cannot put anything in the cart, because the price will be discussed. A price that will be discussed does not enter a payment step.
Putting both on day one
Putting a catalogue and a cart on the same day stretches the calendar. The record the buyer reads, and the path to an offer, go live first. Payment waits for a second release, once the need is written. The company should own the domain, the ad account, and the code. If the shop panel sits on a supplier licence, the first release is not yours. The catalogue record sits in the same repository.
The decision is in the buyer sentence
The buyer asks for an offer, asks for a price, asks for a sample. Those three are not a cart sentence. HED Creative, the partner in Berlin or Ankara, picks the first release from that sentence. A shop add-on is not switched on while the sentence is not a cart. If it is, sales has to look at a screen nobody uses.
To have the choice written, put the buyer first sentence on website development. A site that takes an offer: a B2B site that gets enquiries.