## Documentation Index Access the complete documentation index at: https://www.zoho.com/au/books/kb/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # What is Transaction Locking? ![](/books/images/ue-resources/llm-utility-menu/sparkle-ai.svg) Explore With AI ![](/books/images/ue-resources/llm-utility-menu/dd-arrow.svg) * [Open in ChatGPT (opens in new tab)](https://chatgpt.com/?prompt=Analyze+the+content+of+https%3A%2F%2Fwww.zoho.com%2Fau%2Fbooks%2Fkb%2Faccountant%2Facc-transactionlock.html+and+understand+it+thoroughly+so+I+can+ask+questions+about+it.) * [Open in Claude (opens in new tab)](https://claude.ai/new?q=Analyze+the+content+of+https%3A%2F%2Fwww.zoho.com%2Fau%2Fbooks%2Fkb%2Faccountant%2Facc-transactionlock.html+and+understand+it+thoroughly+so+I+can+ask+questions+about+it.) * ![Copy for LLM](/books/images/ue-resources/llm-utility-menu/copy.svg) Copy for LLM * [![View as Markdown](/books/images/ue-resources/llm-utility-menu/md.svg) View as Markdown (opens in new tab)](/au/books/kb/accountant/acc-transactionlock.md) When your business accounting period closes and you wish to freeze your transactions in that period from being modified or deleted is when Transaction Locking comes into play. Once Transaction lock in enabled, all transactions before the set date cannot be Edited or Deleted. Addition of new transactions are also restricted before the set date.