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# Example: lr_end_sub_transaction

In the following example, a sub-transaction called "electrical_purchases," performs purchases of six electrical items. If this sub-transaction is successful, the transaction status is recorded as LR_AUTO. The default value of LR_AUTO is LR_PASS. If the purchase is unsuccessful, the value is set as LR_FAIL.

     /* Notify that a transaction is starting */
    lr_start_transaction("purchases");
     /* Breakdown the transaction into a smaller transaction */
    lr_start_sub_transaction("electrical_purchases", "purchases");
    status = purchase_electrical_items(6); /* call to Server API */

     /* End transaction with operation result - pass or fail */

    if (status == 0)
        lr_end_sub_transaction("electrical_purchases", LR_AUTO);
    else
        lr_end_sub_transaction("electrical_purchases", LR_FAIL);

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