Hi @milovan9926,
Thanks for sharing this with us.
If these users are already in Klaviyo with birthdays set, when setting up the trigger for your birthday flow, choose Yearly for “When should this flow repeat”. That way these users will receive the email on the same day, (October 1st, for example) of each year.
If they are not already in Klaviyo, you will want to first import them using a .csv file, and include a column header in the .csv file for birthday. If the birthday field already exists in your Klaviyo account, ensure that when you upload the file, you are mapping it to the existing birthday field. This will prevent a duplicate custom property from being created. Once the import is done and the birthday flow is set-up, live and using “yearly” for “when to repeat”, these users will automatically be pulled into the birthday flow on the same day each year.
Thanks for being a member of our community!