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Product Advertising API
Developer Guide (API Version 2013-08-01)

Separator Characters

The question mark (?) and ampersand (&) characters separate terms in a REST request. The first term in a request is the endpoint. A question mark always follows the endpoint. The question mark tells the Product Advertising API web servers to start parsing the request for parameters.

Ampersands separate all other parameter name-value pairs in the request. The order of parameter name-value pairs is unimportant, as long as they appear after the question mark.

Request Limitations

You can combine multiple parameters in one batch request. The maximum number of characters in a request varies by browser. For example, the character limit for a URL in Internet Explorer is about 2000 characters. It is unusual for a request to meet this character limit.