# system.kanoa.inventory.updateInventoryTransactionTypeField(inventoryTransactionTypeId, field, value, userId)

Updates a single named field on an inventory transaction type record identified by `inventoryTransactionTypeId`. 
This is a targeted, single-column alternative to `updateInventoryTransactionType`, useful when only one attribute (the transaction type's code, name, or quantity sign) needs to change. 
The update is attributed to the user specified by `userId`.

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### Parameters
**inventoryTransactionTypeId** `Integer`: Id of inventory transaction type to update<br />
**field** `String`: Valid options are inventoryTransactionTypeId, transactionTypeCode, transactionTypeName, quantitySign<br />
**value** `String`: Value to update to<br />
**userId** `Integer`:Id of the user executing the function<br />

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### Returns
**# of records modified** `Integer`<br />
**message** `String` None if success<br />

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### Example
```python
inventoryTransactionTypeId = 4
fieldName = 'transactionTypeName'
fieldValue = 'Cycle Count Adjustment'
userId = system.kanoa.security.getIDPUserId({'userName': 'SYSTEM'})
recordsModified, message = system.kanoa.inventory.updateInventoryTransactionTypeField(inventoryTransactionTypeId, fieldName, fieldValue, userId)
print recordsModified, message
```