I am trying to use the sharepoint REST api to get all users birthdays.

So I am using a crawled property People:SPS-Birthday with the managed property RefinableDate00.

Yesterday 15/08/2019 (Thursday) it was working fine, but today when I search the users using the query:


The RefinableDate00 is empty.

I dont know why this happening, someone faced this kind of thing before?

  • Is RefinableDate00 managed property still bound to People:SPS-Birthday? Aug 17, 2019 at 1:32
  • yes. it is bound to People:SPS-Birthday
    – Snmr
    Aug 19, 2019 at 12:55

2 Answers 2


My guess is that either somebody has modified the search resultat source you are using or the mapping has changed or you are using another context. What does the SP Search Query tool shows for that query?

  • I tested with the SP Search Query Tool and the property "refinabledate00" is empty :(
    – Snmr
    Aug 19, 2019 at 14:00

Below are the possible situations happened in the back-end,

  1. Particular user's Birthday was modified in the user profile.
  2. Mapping of the Search Crawl proeprty "RefinableDate00" with User Profile managed property "SPS-Birthday" is modfied.
  3. User's profile sync happened with Active Directory, and Active Directory may be update the empty value!

Please checkout the user's UserProfileProperties is still returns the value for Birthdate.


If the UserProfile property didn't have the Birthdate, update the value in Birthdate and wait for crawl to appear in search results.

  • 1. This user has a birthdate set up in delve page 2. The Crawl proeprty "RefinableDate00" is bound with User Profile managed property "SPS-Birthday" 3. I dont know, i am in Sharepoint Online I checkout the UserProfileProperties and it has a value for birthday <d:element m:type="SP.KeyValue"> <d:Key>SPS-Birthday</d:Key> <d:Value>16/08/2000 00:00:00</d:Value> <d:ValueType>Edm.String</d:ValueType> </d:element>
    – Snmr
    Aug 19, 2019 at 13:56

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