Forum Discussion
In the child Pipeline you don’t have to specify any values(the Values can be blank). When you run the pipeline the values are sent from the Parent Pipeline to Child pipeline. when using the Pipeline Execute Snap, the data can be passed through the input view of the child Pipeline When you are designing the pipeline you can specify valid values to work with.
https://docs-snaplogic.atlassian.net/wiki/spaces/SD/pages/1438254/Pipeline+Properties#PipelineProperties-Settings