--- title: prolog.resourceid description: "## Syntax **prolog.resourceid**((**id**=IDvalue)(**conref**=conref value)(**appname**=name of application)) IDvalue value of the resource ID conref (optional) a URI reference to a DITA element appname (optional) name of application using the resource ID ## Purpose The prolog.resourceid() annotation is used to assign an…" url: "https://www.stilo.com/docs/migrate/prolog/prolog-resourceid/" updated: "2021-04-27" category: Annotations / Prolog tags: - Annotations --- # prolog.resourceid ## Syntax **prolog.resourceid**((**id**=IDvalue)(**conref**=conref value)(**appname**=name of application)) IDvalue value of the resource ID conref (optional) a URI reference to a DITA element appname (optional) name of application using the resource ID ## Purpose The prolog.resourceid() annotation is used to assign an ID to a topic that will be used by an application requiring a specific format, and that cannot use the regular topic ID element. The resource ID must be unique. This is an example of what a resource ID text string may look like in your document. [![Source document text](https://www.stilo.com/wp-content/uploads/2021/03/prolog-resourceid-source-document.png)](https://www.stilo.com/wp-content/uploads/2021/03/prolog-resourceid-source-document.png) The following is an example of what the annotation may look like when filled out. [![Rule for prolog.resourceid()](https://www.stilo.com/wp-content/uploads/2021/03/prolog-resourceid-rule.png)](https://www.stilo.com/wp-content/uploads/2021/03/prolog-resourceid-rule.png) The following is an example of the DITA output you would get from this annotation. ``` ```