2772062 - For User API (ODATA) UPSERT, system saves and shows incorrect data for the field like "dateOfBirth" when the date which is being sent is earlier than 1583

In case of User API (ODATA) UPSERT, system saves and shows incorrect data for the field like "dateOfBirth" when the date which is being sent is earlier than 1583. If the date is 1583 or higher, then the system saves and shows correct date.

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SAP SuccessFactors

Case 1: ISSUE ( Incorrect Data is getting returned ):

Send OData request POST (UPSERT) which contains the below data in body:

<m:properties>
<d:dateOfBirth m:type="Edm.DateTime">1582-02-13T00:00:00</d:dateOfBirth>
</m:properties>

Then QUERY the same data for the same user, it gets returned as below:

<m:properties>
<d:dateOfBirth m:type="Edm.DateTime">1582-02-03T00:00:00</d:dateOfBirth>
</m:properties>

Case 2: Correct Data is getting Returned:

Send OData request POST (UPSERT) which contains the below data in body:

<m:properties>
<d:dateOfBirth m:type="Edm.DateTime">1583-02-13T00:00:00</d:dateOfBirth>
</m:properties>

Then QUERY the same data for the same user, it gets returned as below:

<m:properties>
<d:dateOfBirth m:type="Edm.DateTime">1583-02-13T00:00:00</d:dateOfBirth>
</m:properties>

This issue has occurred due to historical calendar switch from Julian to Gregorian in that year. According to Wikipedia, when the new calendar was put in use, the error accumulated in the 13 centuries since the Council of Nicaea was corrected by a deletion of 10 days. The Julian calendar day Thursday, 4 October 1582 was followed by the first day of the Gregorian calendar, Friday, 15 October 1582 (the cycle of weekdays was not affected).

Note that some countries - in particular England - did not adopt that calendar until 1752. And Russia, for example, didn't adopt it until well into the 20th century!

Currently, there is no perfect way to solve the issue. So, it is suggested not to use too old historical date for field like "dateOfBirth".

dateOfBirth, incorrect data, USER, UPSERT, 1583 , KBA , LOD-SF-INT-ODATA , OData API Framework , LOD-SF-INT , Integrations , Problem