I'm using the "Re-Index Tree" button in the Content Editor (Developer toolbar). I run a query in Solr admin just after to examine the indexed document and for some reason, the _indextimestamp property of the document does not seem to update.

Is there logic in Sitecore or Solr which means the document only gets updated IF there is a change?

1 Answer 1


Mostly, yes.

I found that for regular master/web indexes the update does indeed happen irrespective of whether changes have been made. So re-indexing a tree, should see the _indextimestamp change for any affected items.

But not always

For Sitecore Commerce (in 9.0, at least) performing a "Re-index Tree" only seems to result in an actual update if changes to commerce items have taken place. In the logs I found the message

Checking for entities to index in list 'SellableItemsIncrementalIndexMaster'.

so I presume that no matter what you do in Sitecore, nothing will update in the indexes, unless you make some Commerce Catalog changes.

  • I was about to answer this, because im pretty sure it always update the document regardless if the item changed or not Jan 29, 2021 at 16:31
  • @AhmedOkour Do feel free to add an answer! Jan 29, 2021 at 16:32

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