> For the complete documentation index, see [llms.txt](https://integrations.impact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://integrations.impact.com/partner-api-reference/reference/exception-lists/exception-lists.md).
# Exception Lists
Endpoints for retrieving exception list details and items.
## Retrieve an Exception List
> Retrieves the details of an existing exception list using its unique ID. The ExceptionListId can be obtained from the Contracts API.
```json
{"openapi":"3.1.0","info":{"title":"Partner Exception Lists API","version":"16"},"tags":[{"name":"Exception Lists","description":"Endpoints for retrieving exception list details and items."}],"servers":[{"url":"https://api.impact.com"}],"paths":{"/Mediapartners/{AccountSID}/ExceptionLists/{ExceptionListId}":{"get":{"operationId":"retrieveExceptionList","tags":["Exception Lists"],"summary":"Retrieve an Exception List","description":"Retrieves the details of an existing exception list using its unique ID. The ExceptionListId can be obtained from the Contracts API.\n","parameters":[{"name":"AccountSID","in":"path","required":true,"schema":{"type":"string"},"description":"Unique identifier for the partner account."},{"name":"ExceptionListId","in":"path","required":true,"schema":{"type":"string"},"description":"The unique identifier for the exception list."}],"responses":{"200":{"description":"The exception list object.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ExceptionList"}}}}}}}},"components":{"schemas":{"ExceptionList":{"type":"object","properties":{"Id":{"type":"string","description":"Unique identifier for the exception list."},"Name":{"type":"string","description":"Display name of the exception list."},"State":{"type":"string","enum":["ACTIVE","CLOSED","DEACTIVATED"],"description":"The current state of the exception list."},"CampaignId":{"type":"string","description":"Unique identifier for the program this exception list applies to."},"Type":{"type":"string","enum":["CATEGORY","SKU"],"description":"The matching basis for this exception list. CATEGORY matches against the conversion's product category value; SKU matches against the conversion's SKU or ProductId value."},"CreatedDate":{"type":"string","format":"date-time","description":"Date and time the exception list was created (ISO 8601)."},"DeactivationDate":{"type":"string","format":"date-time","description":"Date and time the exception list was deactivated (ISO 8601). Empty if the list is still active."},"NumberOfItems":{"type":"integer","description":"The number of items in the exception list."},"ItemsUri":{"type":"string","description":"API resource path for retrieving the items in this exception list."},"Uri":{"type":"string","description":"Unique reference to the exception list object in the impact.com API."}}}}}}
```
## List Exception List Items
> Returns a list of all items in a specific exception list. Each item defines a product category or SKU value that triggers an alternate commission rate.
```json
{"openapi":"3.1.0","info":{"title":"Partner Exception Lists API","version":"16"},"tags":[{"name":"Exception Lists","description":"Endpoints for retrieving exception list details and items."}],"servers":[{"url":"https://api.impact.com"}],"paths":{"/Mediapartners/{AccountSID}/ExceptionLists/{ExceptionListId}/Items":{"get":{"operationId":"listExceptionListItems","tags":["Exception Lists"],"summary":"List Exception List Items","description":"Returns a list of all items in a specific exception list. Each item defines a product category or SKU value that triggers an alternate commission rate.","parameters":[{"name":"AccountSID","in":"path","required":true,"schema":{"type":"string"},"description":"Unique identifier for the partner account."},{"name":"ExceptionListId","in":"path","required":true,"schema":{"type":"string"},"description":"The unique identifier for the exception list whose items are being retrieved."}],"responses":{"200":{"description":"A list of exception list item objects.","content":{"application/json":{"schema":{"type":"object","properties":{"ExceptionListItems":{"type":"array","items":{"$ref":"#/components/schemas/ExceptionListItem"}}}}}}}}}}},"components":{"schemas":{"ExceptionListItem":{"type":"object","description":"An item within an exception list that defines a specific category or SKU value triggering an alternate commission rate.","properties":{"Id":{"type":"string","description":"Unique identifier for the exception list item."},"ListId":{"type":"string","description":"Unique identifier for the parent exception list."},"Name":{"type":"string","description":"Display name of the exception list item."},"Value":{"type":"string","description":"The category or SKU value that this item matches against, depending on the parent exception list's Type."},"MatchMode":{"type":"string","enum":["EQ","REGEX"],"description":"The matching methodology used to evaluate the value. EQ matches exactly; REGEX matches using a regular expression."},"CreatedDate":{"type":"string","format":"date-time","description":"Date and time this item was added to the exception list (ISO 8601)."},"Uri":{"type":"string","description":"Unique reference to the exception list item in the impact.com API."}}}}}}
```
---
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