Why didn't the sibling discount apply?

The rule picks the younger children by date of birth at billing time. A missing DOB, separate families, or a date window are the usual causes.

troubleshootUpdated 2026-08-26 Raw markdown

The sibling discount is worked out at billing time, by the children's ages. NestliCare orders a family's children by date of birth and applies the rule to the younger ones. You never tag a child as "the second child".

So when it does not apply, check:

  1. Are the children in the same family? Siblings split across two family cards look like two only children.
  2. Do both children have a date of birth? A missing DOB can make a family look like it has one child. Fill it in on the child's profile.
  3. Does the discount's date window overlap the invoice's billing period? A rule with an end date stops firing once no part of a period overlaps it.
  4. Was the discount active before the invoice was generated? Discounts apply at generation time. A rule you added today reaches the next invoice, never existing ones.

Fix the cause, then void the wrong invoice and create a corrected one; existing invoices keep their original figures.

Related: Subsidies and discounts, Credits and referral bonuses.

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