Adobe data feeds post_visid_high & post_visid_low show NULL value

[AbbyY]

Hi everyone, I tried to look up in Adobe documentation but didn't find the answer that I need.

We consume the Adobe daily hit_data data feed file and calculated the Visit and Visitor as below.

However, we got NULL for some rows in post_visid_high , post_visid_low, VISIT_PAGE_NUM and VISIT_NUM that it never happened before, I wonder if it is expected or that was issue with the data feed?

reference link : https://experienceleague.adobe.com/en/docs/analytics/export/analytics-data-feed/data-feed-contents/d...

Visits

1. Concatenate post_visid_high, post_visid_low, visit_num, and visit_start_time_gmt.
2. Count the unique number of values.

Visitors

All methods Adobe uses to identify unique visitors (custom visitor ID, Experience Cloud ID service, etc.) are all ultimately calculated as a value in post_visid_high and post_visid_low. The concatenation of these two columns can be used as the standard of identifying unique visitors regardless of how they were identified as a unique visitor. If you would like to understand which method Adobe used to identify a unique visitor, use the column post_visid_type.

1. Concatenate post_visid_high and post_visid_low.
2. Count the unique number of values.

[Jennifer_Dungan]

Hi, how many null values do you have comparatively?

Could these be coming from old cached versions of your pages using old s_code implementations? I had a discussion with some folks on this not too long ago... we chalked it up to "it is the way it is" due to a mix of old and new implementations... 

Not an answer I particularly like... but sometimes it's the best you get?  If we aren't talking about a huge loss, it may not be worth going down the rabbit hole...