# Why did my swap fail Transactions can fail due to various reasons. The most common reason is **"gas fee is insufficient".** An "insufficient gas" error occurs when the gas allocated for a transaction is consumed before the swap completes. To prevent transactions from failing due to "out of gas", we recommend the default network fee set by Transit Swap. When the swap fails, the network may consume some gas fee, but the assets you want to exchange are still safe and available in your wallet. If your swap fails several times, please contact us (TG link) and we will investigate the cause. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.transit.finance/start-to-use/faq/why-did-my-swap-fail.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.