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googleSheets.createConditionalFormatRule() inserts a boolean or gradient rule into one sheet’s conditional-format priority list.

Example

Inputs

Provide spreadsheet, one or more ranges on the same sheet, and rule. A range can be a structured one-based grid range or a table target with optional section: all, header, body, or footer. The action resolves table targets to fixed grid ranges when it creates the rule. Later table resizing doesn’t change those ranges automatically. Optional index is the zero-based insertion priority and defaults to 0, the highest priority. Inserting, moving, or deleting rules can shift their per-sheet indexes.

Define a boolean rule

A boolean rule has type: "boolean", a typed condition, and format. Conditions accept only these documented forms:
  • One value: numberGreaterThan, numberGreaterThanOrEqual, numberLessThan, numberLessThanOrEqual, numberEqual, numberNotEqual, textContains, textNotContains, textStartsWith, textEndsWith, textEqual, or dateEqual
  • Exactly two values: numberBetween or numberNotBetween
  • One literal or relative-date value: dateBefore or dateAfter. Relative dates are { relativeDate: "pastYear" | "pastMonth" | "pastWeek" | "yesterday" | "today" | "tomorrow" }
  • No value: blank or notBlank
  • customFormula with formula starting with = or +
Conditional formatting supports only bold, italic, strikethrough, textColor, and backgroundColor. Google doesn’t accept borders, underline, alignment, or other cell-format properties for conditional rules.

Define a gradient rule

A gradient rule has type: "gradient", required min and max interpolation points, and optional midpoint. Every point supplies color. The minimum accepts type: "min" without a value, the maximum accepts type: "max" without a value, and either extreme accepts type: "number" | "percent" | "percentile" with a string value. A midpoint accepts only one of those value-based types. All colors are either a six-digit hex string or { theme }, where theme is text, background, accent1 through accent6, or link. Second argument { account } selects the Google Account. All action inputs accept compatible signals.

Output

Returns { index, ranges, rule }. Ranges use zero-based, end-exclusive indexes and numeric sheetId.