I’m building an n8n workflow to scrape a site with subsitemaps → categories → products and want to ensure all URLs at each level are fully processed before moving to the next level, without overlapping execution

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To ensure sequential processing without overlapping execution, you can use the “Wait” node in combination with the “Function” node. First, collect all URLs from the subsitemap, then use a “Function” node to iterate through each category URL sequentially. After processing each category, add a “Wait” node to pause the workflow until all products in that category are processed before moving to the next category. This approach ensures each level completes fully before proceeding to the next.