I have a flow which was deployed to a full sandbox from a dev sandbox. The flow was tested working in the dev sandbox as well as a partial sandbox. For some reason after deploying it to the full sandbox it shows this error at the get records node of the flow. I am pulling in just one record from the task object. The below is the error I get when I debug. What could be the reason that its not working in the full sandbox?

Error Occurred: This error occurred when the flow tried to look up records: An unexpected error occurred. Please include this ErrorId if you contact support: 1348612264-167340 (-548403183). You can look up ExceptionCode values in the SOAP API Developer Guide

  • did you look at the email that is generated by the Flow runtime engine? My suspicion would be a non-selective query
    – cropredy
    Jul 23, 2021 at 17:34
  • That was right cropredy. I found a fix. Jul 23, 2021 at 18:38
  • So the answer was a non-selective query?
    – cropredy
    Jul 23, 2021 at 18:48
  • I kept the query the same, but the field the query was looking up was not indexed. Indexing fixed the issue Jul 26, 2021 at 18:43

1 Answer 1


There are two reasons why something that works in a dev sandbox no longer works in a full copy sandbox

  1. The configurations are different. This is indicative of a failure somewhere in your DevOps process (not pushing all changes from dev upstream; making asynchronous config changes directly into upstream sandboxes; failure to address merge conflicts)

  2. You have a query that is non-selective. The dev sandboxes work fine because a table scan doesn't take too long as there aren't likely to be many records. But the full copy sandbox, is, by definition, a full copy of PROD and could have millions of records.

I would surmise in your case that the latter reason (non-selective query) is the issue, especially as the Flow fails on a Get Records element.

Examine your Get Records element and ensure the query will be selective. This means that indexed fields should be used to help winnow down the corpus of records into an efficient search.

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