# Client supplied identifiers

<DocTable
  headers={["Tag", "Name", "Defined In", "Echoed Back", "Description"]}
  widths={[undefined, "10%", "30%", "30%"]}
  rows={[
    [
      "11",
      "[ClOrdID](https://www.onixs.biz/fix-dictionary/4.4/tagNum_11.html)",
      "- [New Order Single `<D>`](/trading/fix/order-entry/exchange-bound-messages/new-order-single-limit)\n- [Order Cancel Request `<F>`](/trading/fix/order-entry/exchange-bound-messages/order-cancel-request)",
      "- [Execution Report `<8>`](/trading/fix/order-entry/client-bound-messages/execution-report)\n- [Order Cancel Reject `<9>`](/trading/fix/order-entry/client-bound-messages/order-cancel-reject)",
      "The client's request identifier, which may refer to either an order or an order-cancel request.\n\n \u00A0 \n\nGemini **strongly recommends** making this field **unique** among active orders for a given port. One common practice is to include a date prefix (e.g., `20160114_0001`).\n\n \u00A0 \n\nGemini **does not enforce** uniqueness, so sending a duplicate [ClOrdID `<11>`](https://www.onixs.biz/fix-dictionary/4.4/tagNum_11.html) might cause confusion in downstream reports.",
    ],
    [
      "41",
      "[OrigClOrdID](https://www.onixs.biz/fix-dictionary/4.4/tagNum_41.html)",
      "- [New Order Single `<D>`](/trading/fix/order-entry/exchange-bound-messages/new-order-single-limit)\n- [Order Cancel Request `<F>`](/trading/fix/order-entry/exchange-bound-messages/order-cancel-request)",
      "- [Execution Report `<8>`](/trading/fix/order-entry/client-bound-messages/execution-report)\n- [Order Cancel Reject `<9>`](/trading/fix/order-entry/client-bound-messages/order-cancel-reject)",
      "Specifies the [ClOrdID `<11>`](https://www.onixs.biz/fix-dictionary/4.4/tagNum_11.html) of the order you want to cancel. This must correspond to a **currently outstanding order** submitted during this trading session.\n\n \u00A0 \n\nGemini will cancel **every** active order whose [ClOrdID `<11>`](https://www.onixs.biz/fix-dictionary/4.4/tagNum_11.html) matches the value in this field.",
    ],
  ]}
/>