ERR_DATA_TYPE_MISMATCH on Make.com: The scenario stops with an error reading "Data structure mismatch: expected a string or text value, but received a collection or array instead." — Root cause: This error occurs when a downstream module expects a single flat data type (like text or a number) but receives an entire collection or array object from an upstream module. It typically happens after an external API updates its payload structure or when a search module returns multiple bundles instead of a single mapped value. — If data type mismatches persist despite correct mapping and restructuring, contact Make.com support through the Help Center. Provide your scenario blueprint JSON, input/output execution bundles, and screenshots of the failing module configuration.