In most B2B Shopify businesses that run HubSpot, the split is clean. HubSpot owns the relationship: companies, contacts, the pipeline, deal stages, quotes built from a product library, sequences and the reporting your sales leader reviews on Monday. Shopify owns the commerce: the catalogue, company accounts, B2B price lists, orders and fulfilment. An ERP or accounting system owns the money and the stock.
The HubSpot Shopify integration ties the first two together, syncing customers, products and orders so a rep can see what an account actually bought without leaving the CRM. That is genuinely useful, and it is why the combination is popular with wholesalers who sell through people rather than through search.
But notice where the deal ends. A rep negotiates, sends a quote from HubSpot, the buyer agrees, and then the buyer's purchasing system generates a purchase order and emails it as a PDF. That document is the actual order, and nothing in the stack reads it. So the rep or an order desk retypes it, often while checking it against the quote line by line, which is the least valuable use of a salesperson's day. LevelOps PDF to Order removes exactly that step.