Action References

LoopAction

Purpose Iterate over an array computed by MScript; for each item, execute a list of action IDs.

When to use it

To process N related items (e.g., create N child records, validate each row)

Key fields

Field	Type	Description
`loopFor`	MScript	Evaluates to an array.
`loopItemName`	String	Variable name bound to current item (e.g., `item`).
`actions`	[String]	Action IDs executed per item.
`isParallel`	Boolean	Run item steps concurrently or sequentially.

Example

{
  "id": "a330-loop-tasks",
  "name": "closeEachOpenTask",
  "loopFor": "this.openTasks",
  "loopItemName": "taskItem",
  "isParallel": false,
  "actions": ["a120-update-tasks"]   // references another action by ID
}

Notes

Nested ParallelAction/LoopAction is supported.
Be mindful of resource contention (DB limits, external rate limits).
Combine with onActionError: completeApi for non-critical branches.

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Last updated Jan 3, 2026