Clean Customs Brokerage Entry CSV Files Before a Port Delay Review

Port delay reviews become unreliable when customs brokerage exports are inconsistent. Container IDs may include extra spaces, milestone dates may use different formats, and hold codes may appear in several variations across brokers or lanes. If the file is not cleaned first, the review team spends its time arguing over records instead of finding the shipments that actually need intervention.

The fix is simple: standardize the entry data before the delay meeting.

What Usually Shows Up in Customs Entry Exports

Field type	Common issue	Review impact
Container or bill number	Formatting drift, prefixes, spacing	Rows fail to match carrier or port records
Entry submission date	Mixed date formats	Delay aging becomes unreliable
Hold or inspection code	Similar codes written differently	Exception counts are split across categories
Port and terminal names	Abbreviations vs full names	Lane-level summaries look fragmented
Release status	Missing or stale values	Team cannot separate active risk from resolved files

If these fields are normalized before the meeting, the review becomes much easier to trust.

A Practical Cleanup Sequence

1. Import the raw brokerage exports for the review window.
2. Trim and standardize shipment identifiers.
3. Convert all date columns to one format.
4. Map hold codes and release statuses to a common vocabulary.
5. Flag missing container IDs, missing release dates, and duplicate entries.
6. Build one exception table for active delayed shipments.

This is especially important when the review combines broker files, port milestone files, and carrier status exports.

Example Exception Table

Container	Port	Hold category	Days delayed	Release status	Action owner
FSCU4421903	Long Beach	Documentation hold	4	Pending	Brokerage team
TGHU7710281	Savannah	Inspection hold	7	Pending	Import operations
MEDU1134589	Newark	Missing release date	3	Unknown	Carrier coordinator
TEMU6023147	Houston	Duplicate entry rows	2	Review needed	Data analyst

Checks to Run Before the Meeting

Check	Why it matters
Missing shipment identifiers	Prevents blind spots in the exception list
Duplicate entry numbers	Avoids double-counting delay exposure
Invalid date order	Catches impossible sequences such as release before filing
Unmapped hold codes	Keeps categories readable for operations teams
Blank release status	Highlights records that need follow-up before the call

When to Separate Active Risk From Cleanup Risk

Not every issue in the export is an operational delay. Some issues are simply data quality defects.

Record type	Better treatment
Real port hold with clean identifiers	Keep in the active delay review
Duplicate row with same container and timestamp	Remove or collapse before reporting
Missing release date but confirmed released elsewhere	Fix or annotate before counting
Unknown hold code from one broker	Map to standard category or isolate for follow-up

That distinction helps the team focus on shipments that truly need intervention.

Text Flow

Raw brokerage exports
        |
Identifier cleanup
        |
Date standardization
        |
Hold-code mapping
        |
Duplicate and missing-field checks
        |
Final delayed-shipment review table

Common Mistakes

• Treating every broker export as if it uses the same column names.
• Counting blank release statuses as confirmed delays without validation.
• Leaving container IDs in mixed formats before joining carrier files.
• Mixing historical resolved holds into the current review packet.

Who Benefits From This Workflow

This process is useful for import operations managers, customs coordinators, brokerage teams, and analysts who prepare daily or weekly delay reviews. It is especially helpful when several external partners feed the same meeting but no one can guarantee that their export structures will match.

Review Checklist

• One row per shipment in the final exception table.
• One standard date format across every source export.
• One agreed vocabulary for hold categories and release statuses.
• One separate bucket for data defects that are not true operational delays.

Download DataOlllo

If customs and port review files still need manual cleanup before every delay meeting, try a local workflow with DataOlllo: download DataOlllo.