Does Salesforce have any limits on indexing the number of fields on a Big Object?

The example in the latest Big Object guide indexes 3 fields. Does anyone know, whats the governor limit on number of indexes, if any?


  • Docs suggest they're the same as normal field limits, so probably just about the same.
    – sfdcfox
    Nov 15, 2017 at 6:09

2 Answers 2


Based upon this knowledge base article it looks like the limit is 5 as Geoff Rothman reported.


Quoting in case this link ever dies:

"Keep these considerations in mind when creating the index.

  • An index must include at least one custom field and can have up to five custom fields total."

As of today, the limit for indexes in a bigobject is 5

  • Do you have a source to corroborate this? Your answer seems to be at odds with the accepted answer.
    – Derek F
    Oct 3, 2018 at 1:41

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