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Notion Update Block

Updates existing Notion block's text content. ⚠️ CRITICAL: Content limited to 2000 chars. Cannot change block type or archive blocks. Content exceeding 2000 chars will fail with validation error. For longer content, split across multiple blocks using add_multiple_page_content.

Write actionRisk level 2 of 5OAuth connection
Use Notion Update Block

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Pricing
Free
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Inputs

  • contentstring
    Required
    The new text content for the block. Replaces existing text content entirely. ⚠️ CRITICAL: Notion API enforces a HARD LIMIT of 2000 characters per text.content field. Content exceeding 2000 chars will cause a validation error. For longer content, split across multiple blocks usin…
  • block_idstring
    Required
    Identifier of the Notion block to be updated. Must be a valid UUID (with or without dashes). To find a block's ID, other Notion actions that list or retrieve blocks can be used. For updating content within a page (which is also a block), its ID can be obtained using actions like…
  • languagestring
    Programming language for code blocks. Required when block_type='code'. Supported values include: 'abap', 'arduino', 'bash', 'basic', 'c', 'clojure', 'coffeescript', 'c++', 'c#', 'css', 'dart', 'diff', 'docker', 'elixir', 'elm', 'erlang', 'flow', 'fortran', 'f#', 'gherkin', 'glsl…
  • block_typestring
    The type of the block being updated. If not provided, the action will automatically detect the block type by fetching the block first (adds 1 extra API call). If provided, it must match the EXISTING block's type - you cannot change a block's type. Supported types: 'paragraph', '…
  • additional_propertiesobject
    Optional dictionary of type-specific properties. Common examples: 'checked' (boolean) for to_do blocks to mark complete/incomplete, 'color' (string like 'blue_background', 'gray', 'red') for text styling, 'is_toggleable' (boolean) for heading blocks to make them collapsible, 'ic…

Observable output

  • data
    Required
    Data from the action execution
  • errorstring
    Error if any occurred during the execution of the action
  • successfulboolean
    Required
    Whether or not the action execution was successful or not

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