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Builds a struct payload field by field and writes it into an assign — the standard way to assemble the argument a downstream Flow Action step will consume. When a Flow Action declares that it needs an input of a given struct shape (e.g. a Fortnox project payload), drop a Flow Compose above it and point its output at that step’s assign. The form shows one row per field, and each row picks how the value is sourced.

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Target shape

Pick the struct type to build. The node auto-fills the field list from the struct; unknown fields are silently dropped, missing values become nil.

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Mapping sources

For each field, pick a source:
  • Assign — copy the raw value of another assign.
  • Extract — traverse a map/struct at a path (get_in-style). Direct field access; does not route through any dated-property facade.
  • Dated property — read a dated property through its canonical facade. Supports an optional as-of date (literal ISO string, or the value of another assign).
  • Literal — a fixed JSON-serializable value.

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Configuration

  • Target shape — fully-qualified module name of the struct.
  • Output assign — where the built struct is written.
  • Mappings — per-field source selections (edited inline in the form).

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Ports