# OCI :no\_entry\_sign:Professional :white\_check\_mark:Premium :white\_check\_mark:Enterprise Open Catalog Interface (OCI) is one of the standard formats used when connecting to external punch-out catalogs. The OCI format is used to define the field mapping between the supplier's catalog and Ultimo, to ensure that the data is transferred accurately and completely between source and receiver. Note that only the content of the shopping card is exchanged, the interface does not include online ordering or article synchronisation. With the OCI connecter in Ultimo it is possible to define the field mapping and configure what should happen with the received content of the shopping cart. For example: creating order request lines or a draft order. It is also possible to trigger additional (custom) business logic. Ultimo does not offer standard OCI connectors, only generic tooling to configure these interfaces is available. Each OCI interface has to be configured specifically by a consultant. ## Technical details Specific documentation for a supplier's catalog should be available through the supplier. Ultimo is able to connect to any webshop compliant to the OCI 5.0 standard. Sending an HTTP request can be done using either a GET or POST method. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://developer.ultimo.net/connectors/oci.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.