Quantity for current order line being registered.

The last step in the Standard Workflow for Planned Functions

Quantity is often filled with an existing value
Scanning a barcode will confirm the existing value and move to the next line
You cannot scan a plain barcode value for this reason. You should use Use GS1 Barcodes

Quantity step defines when a line is "Completed".

This can be changed by "lineCompletedDefinition" on Planned (Service) Mobile Configuration

You don't want the user to enter quantity.

This can be done by hiding the step and setting a default value at the same time:

The value can be overwritten by using Online Validation on other steps like LotNumber (LotNumberValidation)

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