Paired item data for item from node ‘Code in JavaScript12’ is unavailable. Ensure ‘Code in JavaScript12’ is providing the required output.
An expression here won’t work because it uses .item and n8n can’t figure out the matching item. You can either:
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Add the missing information to the node ‘Code in JavaScript12’
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Or use
.first(),.last()or.all()[index]instead of.item
