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title: "Order Modification and TCC Mode"
canonical: "https://docs.rubiconwater.com/space/PNC/2051866837/Order%20Modification%20and%20TCC%20Mode"
format: markdown
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> Macro (toc)

The options for modifying orders depend in part on the TCC mode of the outlet at which the order is placed. The following table shows the default rules:

| **TCC Mode** | **Flow Status** | **Order Status** | **What Can Customers Modify:** |
| --- | --- | --- | --- |
| Yes | Estimated | Operating/Pending/Dellivered | Start<br>Note that this cancels the current order and creates a new order.<br>(when saved, all flows for the order are modified) |
| Yes | Estimated | Operating/Pending/Dellivered | Finish/Flow/Crops<br>This modifies the existing order.<br>(when saved, all flows for the order are modified) |
| Partial | Scheduled | Operating/Pending/Dellivered | Start/Finish/Flow/Crops<br>This modifies the existing order. |
| Partial | Estimated | Operating/Pending/Dellivered | Start/Finish/Flow/Crops<br>This modifies the existing order. |
| No | Requested | Operating/Pending/Dellivered | via Modify button -> Start/Finish/Flow/Duration via Advanced button -> Finish/Flow<br>This modifies the existing order. |
| No | Estimated | Operating/Pending/Dellivered | via Modify button -> Start/Finish/Flow/Duration via Advanced button -> Finish/Flow<br>This modifies the existing order. |

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