Apex Governor Limits

Read up on Apex limits details in Execution Governors and Limits

Because Apex runs in a multitenant environment, the Apex runtime engine strictly enforces limits so that runaway Apex code or processes don’t monopolize shared resources. If some Apex code exceeds a limit, the associated governor issues a runtime exception that can’t be handled.

For more information about per-transaction Apex limits, per-transaction certified managed package limits, Salesforce Platform Apex limits, static Apex limits, size-specific Apex limits, and push notification limits, see Execution Governors and Limits.

See Also

Salesforce Help: General Flow Limits