Purpose: Use this article to diagnose and resolve import validation failures, mapping issues, and processing errors.
This article explains common import problems and how to identify issues related to formatting, required fields, duplicate records, and field mapping conflicts.
Related workflows:
Common troubleshooting scenarios:
- Import validation failures
- Field mapping conflicts
- Invalid or missing required data
- Duplicate record handling
- Partial or failed imports
First question: where did it fail?
- Flagged during validation: most file structure, required field, formatting, and mapping issues are caught before the import runs. You can fix these directly on screen, or correct your file and re-upload it.
- Failed during processing: row-level issues such as "not found" lookups or dependency constraints, which can't be fully validated before the import runs.
For the system-level explanation (queued processing, partial success, no rollback, recovery strategy):
Common errors (and what to do)
Missing required field / required column
- Cause: blank required value, or a required field not mapped. If a required column is missing entirely, Administrate adds it automatically and marks it as required during mapping.
- Fix: populate the required value or complete the mapping, then re-validate. You can correct this on screen or by re-uploading a corrected file.
- Prevention: use Prepare your file for import.
Invalid value / invalid format
- Cause: type mismatch (date/number/boolean), inconsistent formatting, stray symbols, or values such as invalid email addresses or incorrect country/province codes.
- Fix: many common formatting issues are flagged during validation and can be corrected on screen. Where possible, use the dropdowns in our Excel template to enter valid values.
Lookup / reference "not found"
- Cause: your file references a value that doesn't exist (or doesn't match lookup rules exactly). Lookup fields can't be validated before the import runs, so these surface as row-level errors during processing.
- Fix: create the referenced record first, or correct the lookup value to match existing data.
- Prevention: before running your import, confirm that any values used in lookup fields already exist in your Administrate instance. See Identifiers, Lookups, and Matching Rules.
Unexpected duplicates created
- Cause: identifiers missing/mismatched; rows were treated as creates.
- Fix: pause further imports; confirm matching logic; clean up duplicates; run targeted corrective updates if appropriate.
- Reference: Matching, Updates, and Safe Operation.
Best practice: correct only the failed subset
If some rows failed and others succeeded, do not re-run the full original file blindly. Instead:
- Isolate the failed rows.
- Correct values for those rows only.
- Re-import the corrected subset.
- Verify outcomes.
Verification workflow: