Use field result from one search to perform another search?

[dreamwork801]

So I've searched the Splunk answers over and over, and read up on subsearches, but I must not be getting something quite right.

So I've got a subsearch (with the assumption that they are performed first) to search all events for a particular context Id, 123456, and then grabs the PaymentId from that event, and performs the outside search for events with the already found PaymentId, and then can get the fields from that event in a table, as shown below. What am I missing?

Data.Response.Payments{}.PaymentId = Data.Request.Payments{}.PaymentId [search ContextId = fcdc6c40-4ebe-4d0f-9481-ebb1701a6aae Pipeline = "RR" | fields + Data.Request.Payments{}.PaymentId] | table Data.Response.TotalPayablesCount

[martin_mueller]

I believe the first part isn't necessary. Try running this:

[search ContextId = "fcdc6c40-4ebe-4d0f-9481-ebb1701a6aae" Pipeline = "RR" | fields Data.Request.Payments{}.PaymentId] | table Data.Response.TotalPayablesCount