When a user without the View All Data permission runs a Salesforce report on Tasks and Events (activity reports) that queries a large number of related records, they may receive one of the following errors:
Sometimes non-administrator users see successful results for reports that query a large number of related records. The inconsistent results occur because some query limits are based on asynchronously-collected statistics, which can occasionally be outdated.
There is a limit on the number of Activity records that a non-Administrator user can query in a single Salesforce report. If you receive one of the errors listed above while attempting to view an activity report, the following two resolution paths are available.
The most effective way to resolve this error is to reduce the number of records the report queries by refining the filter criteria. Options include:
A System Administrator can provide the user with the View All Data profile permission, which removes the query limit and resolves the error.
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