Ramp: Create a Matrix table — request body — body input columns item

Create a Matrix table: request body, field body / input_columns / item. Complete fields and constraints for contract 2026-10-27.

API reference · Contract 2026-10-27

SDK schema: Create a Matrix table — request body — body input columns item

Field	Type	Presence	Description and constraints
`$`	object	Root	Schema for defining a Matrix input column (Developer API).
`column_type`	JSON	Required within parent	Defines the type of input field used by the matrix
`column_type (oneOf 1)`	Model	Alternative	Expand Create a Matrix table — request body — body / input_columns / item / column_type / type: native table
`column_type (oneOf 2)`	Model	Alternative	Expand Create a Matrix table — request body — body / input_columns / item / column_type / type: number
`label`	string	Required within parent	Display name for the input column
`name`	JSON	Optional
`name (anyOf 1)`	string	Alternative	API name for the column Default: null
`name (anyOf 2)`	null	Alternative