Flow email triggers very slowly after simple segmentation

Question

Hi community,on my website, I have some free tools visitors can download after an email signup through a Klaviyo form. The logic behind it is really simple:Klaviyo form submission sets property “source” to XY	All “source = XY” contacts are added to the segment XY	Being added to segment XY triggers the download email via flowHowever, it takes a long time until the contact gets added to the segment and even longer until the first email gets send. All in all, between 20 and 25 minutes. I understand the segment needs time to calculate etc. but this seems extremely slow for me, especially for an email customers are waiting for. In the flow itself, the email is the first action - there are now conditional splits before it.What do you think about that? Does this time seem normal to you, and what can I do to reduce it? I read somewhere to send the form contacts to a list instead of segment, as this would trigger emails quicker, but this would be contrary to the best practice to collect all subscribers in one main list, right?What would be your advice?Thanks a lotMax

stephen.trumble · Accepted Answer

Hey @DRMaxSorry to hear that your segment isn’t updating as quickly as expected. Thank you for coming to the Community for help with this!There are a number of factors that could be causing the segment to update slower than what is expected (in real time). I have a few questions to help troubleshoot first.Are you using a custom or pre-built integration? If pre-built, which integration are you using? Some integrations sync in real time vs some that have a delay in reporting to Klaviyo.Does the segment triggered flow rely on any“negative” conditions (i.e. everyone that is not in several specified lists) - these types of segments may update with a slight delay.What does the conditional split at the beginning of the flow look like? Can you share a screenshot? Depending on the conditional split and if there are any time delays near it, it can possibly cause a delay.However you are correct, 25 minutes is too long for your customers to wait for an email that they are expecting. Typically it should take less than 5 minutes for the profile to be added to the segment and the first email to be sent.You are also correct that a best practice is to have a single main list and segment by the signup form they consented with.Please let me know the additional info so we can take a closer look at what might be happening!

DRMax · Answer

Hi @stephen.trumble ,thanks for your quick reply!What integration do you mean? I currently have Klaviyo synced with Shopify and am using a standard Klaviyo form. The data gets updated in the properties almost immediately, so the delay must come from the segments/flowsNo, the segment and flow setups are really as simple as stated in my original post. Form submission changes value in “source” and this value in “source” is the only entry rule for the segment.Sorry for that typo. I wanted to say that there is no conditional split in it. The email is the first and only action in the flow.I tested it again yesterday and it took about 15 minutes, which is a slight improvement, but still very long for this kind of operation.

Flow email triggers very slowly after simple segmentation

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