Clarification on transaction process

Summary:

Hello team

We need clarification on below points:

Content (required):

1. Can we import transaction incrementally on weekly basis?

2. Can we schedule transaction processes (crediting,Rollup,Classify,Calculatiobn) on weekly once.

3. What is the recommendation volume on quarterly basis/Annual basis

4. Do we have purging option in IC, If yes how to submit request for purging

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):