Errors & Logs

9 pages in this section.

How Solana programs fail cleanly, log with compute discipline, emit structured events, and become decodable for clients and ops.

Explainer Program Errors Logs Events Errors Logs

Error Handling Basics

Learn to handle errors in Solana programs with Rust. Explore 10 examples, from basic ProgramResult and built-in errors to custom error codes and CPI error bubbling.

Rust Errors Program Error Basics

Custom Error Enums

Learn to create custom error enums in Anchor and Rust to translate business failures into stable u32 codes. Understand IDL export, code ranges, and best practices

Rust Errors Enum Idl

Logging with msg!

Learn to use msg! for effective, compute unit-aware logging in Solana programs. Understand its costs, best practices, and common pitfalls.

Rust Logging Msg Compute Units

Emitting Events

Rust Events Anchor Indexing

Decoding Errors Off-Chain

Rust Errors Decoding Solana Kit

Debugging Failed Transactions

Rust Debugging Simulation Logs

Errors & Logs Best Practices

Learn best practices for Rust program errors and logs. Balance observability with cost by using stable error codes, gated logs, and structured events.

Rust Errors Logs Best Practices

Errors & Logs Highlights Summary

A single-page roundup of every highlight bullet from the 8 pages in the Errors & Logs section, grouped by source page so you can scan all 46 takeaways without opening each article individually.

Highlights Summary Program Errors Logs Events

Errors & Logs

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Errors & Logs