# styles.paragraph.setStyleRef

> Apply a paragraph style (w:pStyle) to a paragraph-like block without clearing direct run formatting.



- Member path: `doc.styles.paragraph.setStyleRef(…)`
- Mutates document: yes
- Idempotency: `conditional`
- Supports tracked mode: yes
- Supports dry run: yes

## Expected result

Returns a ParagraphMutationResult; reports NO_OP if the style reference already matches. Unlike setStyle, existing run formatting is preserved.

## Input schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$defs": {
    "ParagraphAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "block"
        },
        "nodeType": {
          "const": "paragraph"
        },
        "nodeId": {
          "type": "string"
        },
        "story": {
          "$ref": "#/$defs/StoryLocator"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "nodeType",
        "nodeId"
      ]
    },
    "StoryLocator": {
      "description": "Story scope. Defaults to document body when omitted. Use {kind:'story', storyType:'body'} for body, or other storyType values for headers, footers, footnotes, endnotes.",
      "oneOf": [
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "body"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "headerFooterSlot"
            },
            "section": {
              "$ref": "#/$defs/SectionAddress"
            },
            "headerFooterKind": {
              "enum": [
                "header",
                "footer"
              ]
            },
            "variant": {
              "enum": [
                "default",
                "first",
                "even"
              ]
            },
            "resolution": {
              "enum": [
                "effective",
                "explicit"
              ]
            },
            "onWrite": {
              "enum": [
                "materializeIfInherited",
                "editResolvedPart",
                "error"
              ]
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "section",
            "headerFooterKind",
            "variant"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "headerFooterPart"
            },
            "refId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "refId"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "footnote"
            },
            "noteId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "noteId"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "endnote"
            },
            "noteId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "noteId"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "textbox"
            },
            "textboxId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "textboxId"
          ]
        }
      ]
    },
    "SectionAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "section"
        },
        "sectionId": {
          "type": "string"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "sectionId"
      ]
    },
    "HeadingAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "block"
        },
        "nodeType": {
          "const": "heading"
        },
        "nodeId": {
          "type": "string"
        },
        "story": {
          "$ref": "#/$defs/StoryLocator"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "nodeType",
        "nodeId"
      ]
    },
    "ListItemAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "block"
        },
        "nodeType": {
          "const": "listItem"
        },
        "nodeId": {
          "type": "string"
        },
        "story": {
          "$ref": "#/$defs/StoryLocator"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "nodeType",
        "nodeId"
      ]
    }
  },
  "type": "object",
  "properties": {
    "target": {
      "oneOf": [
        {
          "$ref": "#/$defs/ParagraphAddress"
        },
        {
          "$ref": "#/$defs/HeadingAddress"
        },
        {
          "$ref": "#/$defs/ListItemAddress"
        }
      ]
    },
    "styleId": {
      "type": "string",
      "minLength": 1,
      "description": "Named paragraph style ID (e.g. 'Normal', 'Heading1'). Unlike setStyle, existing run formatting is preserved."
    }
  },
  "additionalProperties": false,
  "required": [
    "target",
    "styleId"
  ]
}
```

## Output schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$defs": {
    "ParagraphAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "block"
        },
        "nodeType": {
          "const": "paragraph"
        },
        "nodeId": {
          "type": "string"
        },
        "story": {
          "$ref": "#/$defs/StoryLocator"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "nodeType",
        "nodeId"
      ]
    },
    "StoryLocator": {
      "description": "Story scope. Defaults to document body when omitted. Use {kind:'story', storyType:'body'} for body, or other storyType values for headers, footers, footnotes, endnotes.",
      "oneOf": [
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "body"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "headerFooterSlot"
            },
            "section": {
              "$ref": "#/$defs/SectionAddress"
            },
            "headerFooterKind": {
              "enum": [
                "header",
                "footer"
              ]
            },
            "variant": {
              "enum": [
                "default",
                "first",
                "even"
              ]
            },
            "resolution": {
              "enum": [
                "effective",
                "explicit"
              ]
            },
            "onWrite": {
              "enum": [
                "materializeIfInherited",
                "editResolvedPart",
                "error"
              ]
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "section",
            "headerFooterKind",
            "variant"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "headerFooterPart"
            },
            "refId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "refId"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "footnote"
            },
            "noteId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "noteId"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "endnote"
            },
            "noteId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "noteId"
          ]
        },
        {
          "type": "object",
          "properties": {
            "kind": {
              "const": "story"
            },
            "storyType": {
              "const": "textbox"
            },
            "textboxId": {
              "type": "string"
            }
          },
          "additionalProperties": false,
          "required": [
            "kind",
            "storyType",
            "textboxId"
          ]
        }
      ]
    },
    "SectionAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "section"
        },
        "sectionId": {
          "type": "string"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "sectionId"
      ]
    },
    "HeadingAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "block"
        },
        "nodeType": {
          "const": "heading"
        },
        "nodeId": {
          "type": "string"
        },
        "story": {
          "$ref": "#/$defs/StoryLocator"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "nodeType",
        "nodeId"
      ]
    },
    "ListItemAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "block"
        },
        "nodeType": {
          "const": "listItem"
        },
        "nodeId": {
          "type": "string"
        },
        "story": {
          "$ref": "#/$defs/StoryLocator"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "nodeType",
        "nodeId"
      ]
    },
    "TrackedChangeAddress": {
      "type": "object",
      "properties": {
        "kind": {
          "const": "entity"
        },
        "entityType": {
          "const": "trackedChange"
        },
        "entityId": {
          "type": "string"
        },
        "story": {
          "$ref": "#/$defs/StoryLocator"
        }
      },
      "additionalProperties": false,
      "required": [
        "kind",
        "entityType",
        "entityId"
      ]
    }
  },
  "oneOf": [
    {
      "type": "object",
      "properties": {
        "success": {
          "const": true
        },
        "target": {
          "oneOf": [
            {
              "$ref": "#/$defs/ParagraphAddress"
            },
            {
              "$ref": "#/$defs/HeadingAddress"
            },
            {
              "$ref": "#/$defs/ListItemAddress"
            }
          ]
        },
        "resolution": {
          "type": "object",
          "properties": {
            "target": {
              "oneOf": [
                {
                  "$ref": "#/$defs/ParagraphAddress"
                },
                {
                  "$ref": "#/$defs/HeadingAddress"
                },
                {
                  "$ref": "#/$defs/ListItemAddress"
                }
              ]
            }
          },
          "additionalProperties": false,
          "required": [
            "target"
          ]
        },
        "trackedChangeRefs": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/TrackedChangeAddress"
          }
        }
      },
      "additionalProperties": false,
      "required": [
        "success",
        "target",
        "resolution"
      ]
    },
    {
      "type": "object",
      "properties": {
        "success": {
          "const": false
        },
        "failure": {
          "type": "object",
          "properties": {
            "code": {
              "enum": [
                "NO_OP",
                "INVALID_INPUT",
                "PRECONDITION_FAILED"
              ]
            },
            "message": {
              "type": "string"
            },
            "details": {}
          },
          "additionalProperties": false,
          "required": [
            "code",
            "message"
          ]
        },
        "resolution": {
          "type": "object",
          "properties": {
            "target": {
              "oneOf": [
                {
                  "$ref": "#/$defs/ParagraphAddress"
                },
                {
                  "$ref": "#/$defs/HeadingAddress"
                },
                {
                  "$ref": "#/$defs/ListItemAddress"
                }
              ]
            }
          },
          "additionalProperties": false,
          "required": [
            "target"
          ]
        }
      },
      "additionalProperties": false,
      "required": [
        "success",
        "failure"
      ]
    }
  ]
}
```

## Pre-apply throws

- `TARGET_NOT_FOUND`
- `INVALID_TARGET`
- `CAPABILITY_UNAVAILABLE`

## Non-applied receipt codes

- `NO_OP`
- `INVALID_INPUT`
- `PRECONDITION_FAILED`