Performance Considerations During Record Updates
To update sublist data in existing records, instead of using a single import file that includes body field and sublist data, consider using a separate import file for the sublist data, in which you provide a reference to the record you want to update. This approach leads to improved performance.
If you move a set of sublist data to a separate import file, you must do this with all other sublist data. In the following example, if you move Item and Quantity into a separate Item import file, you must also move Apply and Payment into a separate Apply import file.
|
External ID |
Customer |
Item |
Quantity |
Apply |
Payment |
|---|---|---|---|---|---|
|
CM-PT3–042601 |
ABC Trucking |
Carburetor MK60 |
10 |
EXTINV02134 |
2500 |
|
CM-PT3–042601 |
— |
Carburetor MK65 |
3 |
EXTINV02183 |
1500 |
|
CM-PT3–042601 |
— |
— |
— |
EXTINV02190 |
750 |
|
CM-PT3–042602 |
Happy Day Motors |
— |
— |
EXTSO12456 |
500 |
|
CM-PT3–042603 |
Smithson Auto Body |
Alternator BS40 |
2 |
EXTINV02210 |
1200 |
|
CM-PT3–042603 |
— |
Alternator BS52 |
3 |
EXTINV02199 |
300 |
When you move sublist data to separate import files, make sure that the primary import file only contains data for body fields. If the import has more than one import file specified, multiline sublists are not supported. In this case, you must add all sublist data into separate import files, refer to the record ID in each additional file, and run the import.