Define the batch boundary
A batch needs a source reference and a clear interpretation: additions, changes, or a complete replacement. Without that boundary, an absent row might be mistaken for a discontinued item or an unchanged item might be treated as a new product.
The intake plan should describe the identifier used to match entries and what happens when it is missing or repeated. These are business-meaning decisions, not just technical parsing options.
Keep result categories understandable
Accepted entries should have a traceable destination. Held entries should include a reason and a next action. Excluded entries should have an agreed explanation, such as being outside the selected range. Distinguish a technical processing failure from a deliberate decision to leave information unchanged.
A reviewer should be able to move from a summary to the specific source entry. A total alone makes it difficult to investigate which products were affected.
Review changes as well as new entries
An incoming file may revise a dimension, remove a description, or repeat an old value. The workflow should say how each kind of change is treated. An empty source cell should not automatically erase an accepted catalog value unless that behavior has been agreed.
Retries also need a defined effect. Processing the same reviewed batch again should not create duplicate accepted products or apply an unexplained second transformation.
Reconcile before broad release
Compare the source and destination sets, inspect representative attributes, and resolve unexplained differences. A test batch should include duplicate identifiers, unsupported categories, blank values, and a corrected resubmission. Record the rules and exceptions used for the review.
The project may deliver a reconciliation report, a review interface, and a retry procedure. Live synchronization or recurring supplier feeds require additional operating responsibilities. A reviewed one-time import does not automatically define those arrangements.