Moving a clothing biz from IG to Shopify... what are we missing??

My friend has been running a pretty successful clothing business on instagram for a while now. she does these curated collecctions for working women, and it’s been growing really fast just through DMs. I’ve suggested she finally move it over to shopify to actually scale it, so she’s finally considering the jump.

We are trying to prep everything so there are no big surprises, but I want to make sure I’m giving her solid advice. So far we are looking at: 1) building a website 2) collecting customer information to stay in touch with them 3) whatsapp business account 4) setting up shopify store 5) managing billing and subscription side 6) tracking delivery 7) managing return based on policy 8) customer support . is there anything we are missing. We are looking for things that are effective but not super expensive for a small business just starting out.

Is there anything else she needs to prepare for that usually catches people off guard when moving from social to a real store on SHopify?