Shapes

Control the run

Assert Data Quality

Checks the batch against your rules and stops with precise details when one fails.

Nodes › LogicOpen in Neblex

Good for: Protecting destinations from bad data
Role: Works on the records in a flow
Find it in: Nodes › Logic

When to use it

Destinations must never receive empty, incomplete or out-of-range data.
Bad batches should go to a repair path with clear reasons.

Reach for something else when

FilterWhen invalid records can simply be left out.Validate RecordsWhen each record should be checked and routed by result instead of stopping the run.

Example

Before loading a price list, require at least one row, a SKU on every row and prices above zero.

How it works

Settings: Checks (at least one): Row count between (min, max) [min 1], Required fields, Numeric range (field, min, max), Condition on every record.
Output: Records pass through unchanged when every check passes; otherwise the step fails with assert failed (N violations): ... listing up to five. Set On error to Route to handle it in the flow.

More in the guide

Add it to a flow

Open the flow from Build › Workflows.
Open Nodes and find Assert Data Quality under Logic, or search for it. Click it or drag it onto the canvas.
Drag from the previous step's output handle to its input, then open its settings with ✎ Edit.
Run the flow and click the step to see the records it received and produced.

LoopRepeats a group of steps for each record, a set number of times, or while or until a condition holds.Nodes › Logic Run another flowRuns another flow as a reusable sub-flow and continues with its result.Nodes › Logic WaitPauses for a set time before passing records on.Nodes › Logic Wait for eventPauses the run until a matching event arrives, then continues with its data.Nodes › Logic Set valueSaves a named value that later steps in the same run can read.Nodes › Logic Validate RecordsChecks each record against a JSON Schema and tags it valid or invalid.Nodes › Logic