Question:

Why does a Target Subscription do full data exports when the Full Data Extract setting is set to Delta? 

Answer:

The subscription state resets automatically every time an Admin modifies any of the filters in the Target Subscription. Therefore, the subscription needs to do a full data export. After the full export, it continues to do delta exports as expected.

Modifications on the Target Subscription filters are tracked in the System Audit History logs.

Related Documentation:

Network Help Documentation:

• Filter target subscription data
• View system configuration and FTP activity