Unable to see data indexed 4 hours ago

[PN3000]

Hi,

Data was indexed 4 hours ago. At the time i was able to see the data when searching the relevant index. 4 hours later that data is no longer there when running the same search.

index=abc123 source=mysource

I can see other data in the index, and retention period is configured for 3 months.

How can i view this data? What can i check to see 

Splunk On prem - 7.3.15

Thanks

PN 

[richgalloway]

What is the time window of your search?

[PN3000]

As it's a newly created source, the search window is 'All Time'.