Knowing if the file is a delta (only new/updated records) or historical (full set) impacts how imports and updates should be configured (A).

Consistency of the file drop time affects whether to use Scheduled or File Drop Automations (D).

Error notification is critical to quickly address any issues with file import (E).

File size over 5,000 rows (C) is not a problem — Marketing Cloud handles millions of records per automation. Data Relationships (B) are more relevant to segmentation after import, not the automation itself.

—

Exact Extracts from Salesforce Documentation:

Source: Salesforce Help – File Import Automation Planning

→ "Determine if files are incremental or full to properly set import methods. Confirm expected file timing to design scheduled or triggered automations."

Source: Salesforce Help – Automation Studio Best Practices

→ "Always configure error notifications on Import Activities to ensure prompt action in case of import failures."

—