# Parameter Validation Failure : Salesforce Query Component : The component was unable to read job variables even if default values has been set **URL:** https://matillioncommunity.discourse.group/t/parameter-validation-failure-salesforce-query-component-the-component-was-unable-to-read-job-variables-even-if-default-values-has-been-set/2130 **Category:** Matillion ETL **Created:** [April 7, 2023, 8:30pm UTC](https://matillioncommunity.discourse.group/t/parameter-validation-failure-salesforce-query-component-the-component-was-unable-to-read-job-variables-even-if-default-values-has-been-set/2130 "2023-04-07T20:30:31Z") **Posts on this page:** 1 **Page:** 1
### Author: ![birajamohanty](https://sea2.discourse-cdn.com/flex002/user_avatar/matillioncommunity.discourse.group/birajamohanty/32/1423_2.png) [@birajamohanty](https://matillioncommunity.discourse.group/u/birajamohanty) #### Post date: [April 7, 2023, 8:30pm UTC](https://matillioncommunity.discourse.group/t/parameter-validation-failure-salesforce-query-component-the-component-was-unable-to-read-job-variables-even-if-default-values-has-been-set/2130/1 "2023-04-07T20:30:31Z")
I have a parent and child jobs , The standalone child job has Salesforce Query components . I have parameterized all the inputs such as Database, Schema and Table etc..The job was runinng fine until today . The standalone child job validates successfully ,but when I validate the parent job that references the child job, it does not validate as it says thechild job has errors. I have attached the screenshot. I observed that it's not able to recognize the default values set in the job variables of child jobs. SO I modified all my parameters to take a default value and it worked. But this is weird and inefficient way to handle.It looks cumbersome as well as.   ${jv\_warehouse ? jv\_warehouse:'MATILLION\_WH'}   ![0694G00000RpHFjQAN_0D54G00009Fd7vbSAB](https://us1.discourse-cdn.com/flex002/uploads/matillioncommunity/original/1X/3d82d7cd2995ed9b08833b80cdd2574ff85fc79f.png)