product feed that leaves out products people have aged out of

Hi @NRBW 

Thanks for your patience while I investigated this. I think the following solution will work for your use case, but please test it.

You are capturing the birthdate on your form submission. You need a method for assigning that date to an age group and then use that value to personalise for relevant messaging/products in your emails with display logic. 

I have assumed the following age groups that you can extend based on your requirements: pregnant (future birthdate); newborn (0 to 3 months); baby (3 to 12 months); toddler (12 months+)

To segment the age group values, you create 5 segments (one for each age group + one for no birthdate set):

1. pregnant. Definition: Properties about someone birthdate is in the next 270 days
2. newborn. Definition: Properties about someone birthdate is in the last 90 days
3. baby. Definition: Properties about someone birthdate is at least 91 days AND Properties about someone birthdate is in the last 364 days 
4. toddler. Definition: Properties about someone birthdate is at least 365 days ago
5. no_birthdate. Definition: Properties about someone birthdate is not set

Those segments will populate based on birthdate and are exclusive so, for example, if a contact's child is initially in the newborn segment (0 to 3 months), they will move out of that segment when they reach 3 months and 1-day and into the baby segment (3 months to 1 year)

With those segments in place, you can send campaigns to those segments and tailor your messaging/products to each age group.

If you want to show/hide content based on age group, you'll need to create 4 new flows (one for each age group) triggered when someone joins those segments. I've shown an example of one of those below. It basically sets a custom property age_group to the correct value when a contact enters one of your age group segments that you can use for display logic. 

You can then use this value to show/hide blocks with either static products and/or dynamic products from a feed. For example, to show a block to those in the pregnant segment use person|lookup:'age_group'== 'pregnant' in the show/hide logic

Notes:

• segment-triggered flows may have a short delay—usually not long but up to 1 hour for high volumes of contacts entering - so you may need to account for that in any list-triggered flows, which are immediate if you are relying on the age group values to show/hide content.
• A contact will only enter each segment-triggered flow once. That is worth knowing as if they have another baby and update the birthdate for that child, they won’t enter the flow again if they’ve already been in it.

Does that help and make sense? Let me know how you get on.

Regards

Andy