Store Azure WebJobs connection string on to Azure Portal App Settings

Question

I'm trying to store the Web Job connection strings on to Azure Portal. I've moved the connection strings there but Web Job keeps failing with error below:

[03/05/2021 01:59:23 > 2aff49: INFO] stem.ArgumentException: ConnectionString should not be null, and empty string or consists only of white-space characters..

This is how I've setup:

And app config:

<connectionStrings configBuilders="connectionStringsBuilder">
  <add name="xdb.marketingautomation" connectionString="" />
  <add name="xdb.referencedata" connectionString="" />
  <add name="messaging" connectionString="" />
</connectionStrings>