Searching or Filtering in Combobox

Summary

Searching or Filtering in Combobox via typing in values

Content

Hi guys,

Hope you all are doing well during these tough times.

Im having a few issues while working with the combobox component. Im trying to create an SR Edit page in VBCS where im trying to bring the Contact DCL field from OEC as a Combobox in VBCS. The contact Object in our instance has a really large number of records. But

1. Im only able to fetch a handful of them

2. When i try to filter by typing in existing contact names, im not able to filter it down either. (PFA Image)