Klaviyo: E‑mail et SMS

Terrible. Had a sign up form on my pre-launched website. When I tried to notify the ones who had signed up that the site was live Klaviyo disabled my account and didn't let me notify them.

I'll have to email everyone one by one. Terrible service.

Used this service for a year and a half, then they suddenly realized they don't like adult toy stores. Their Terms of Service have no mention of the adult toy industry. They immediately locked my account, and I can't export my list. I really don't care which email marketing solution to use. They are just as good anyone else, but the way they randomly lock accounts is awful. Stay away, use Omnisend or Privy. Had Omnisend for just as long and never had issues. I'll file chargebacks for the past 6 months. Have fun.

Customer service sucks!!!! Repeated emails for the same problem still can't be solved. Live chat takes a long time for someone to reply every time!

Worst app for Email & Sms ever! They have a useless and so complicated editor for emails, you will waste hours and hours making simple edits + their customer support just takes ages to get back to you, and when they do, their feedback is just as useless as they are.
i have wasted so much time and energy on this app, so if u want to save yourself the headaches just go try alternative apps and they are many. Because Klaviyo is proven to SUCK !!!

Customer service is TERRIBLE! Also, Beware if you use their SMS, you are putting your company at compliance risk. This last issue is our final straw with them. They locked (disabled) our account automatically for uploading a list of email addresses that were legally collected from an event we were involved with. So if you don't mind risking your account being shut down until one of their "customer service" reps gets to your ticket within a few days, by all means give them a try. If you want to have a reliable e-mail service, I'd recommend looking elsewhere.

no confirmation email and I tried to do anything I could to find or receive their email. I subscribed the 550$/month for this app and I can't log in to the app currently
Email for support and no response for 1 week

**September 2023** Customer service became so slow AND NOT wiling to deep-dive to help, just to close tickets**
I have realized I lost thousands euros, thousands!! In people not being able to go properly into the welcome flow. I have raised concerns, but support answered there were no issue. I decided to try by myself with a new mail address and I haven't received the welcome mail! I was right, and I had to be extremely pissed towards the support so that they decided to escalade the issue internally, explaining that indeed there was an issue, but the pain is here, thousands euros lost in welcome flow. My business is at risk, terrible.

Disabled my account for no reason, then sent me a questionnaire of over 20 questions about the business in order to grant access to me again. I've waited over a day to resolve this issue and wasted many hours with the customer service.

This app is very difficult to use and no support what so ever. I am looking for a more user friendly one that can be more helpful.

Klaviyo suspended our account despite the fact we had never abused the app and are in good standing with Shopify. We had previously used the service. Klaviyo was not helpful and slow despite repeated attempts to have them understand this was a charity event and urgent time needs. We used Mailchimp, way easier, faster and better.