Contents
- 1 What happens when two records have same external ID during an Upsert operation?
- 2 Can external ID be duplicated Salesforce?
- 3 Which field property of an API must be used to specify the record in an Upsert call?
- 4 Why does upsert give ” duplicate ID exception “?
- 5 How to upsert records using external ID in apex?
What happens when two records have same external ID during an Upsert operation?
So the way an Upsert operation works during a data load, is for each record Salesforce looks at the value loaded in the External Id column, and if the system already contains a record with the same External Id – it updates that record, otherwise – it creates a new one.
Can external ID be duplicated Salesforce?
Note: You can have multiple records with the same External ID, though this it is not recommended.
Which field property of an API must be used to specify the record in an Upsert call and each object of ID filed must possess this property?
The idLookup field property is usually on a field that is the object’s ID field or name field, but there are exceptions, so check for the presence of the property in the object you wish to upsert() . Array of one or more records (maximum of 200) to create or update. All records must have the same object type.
Are external ID unique in Salesforce?
External ID in Salesforce is a custom field that has the “External ID” attribute checked meaning that it contains unique record identifiers from a system outside of Salesforce. When we select this option the import wizard will detect existing records in Salesforce that have the same External Identification.
Which field property of an API must be used to specify the record in an Upsert call?
idLookup
API Field Properties
| Property | Description |
|---|---|
| idLookup | Can be used to specify a record in an upsert call. The Id field of each object has this property and some Name fields. There are exceptions, so check for the property in any object you wish to upsert. |
Why does upsert give ” duplicate ID exception “?
If it finds more matches it throws an error: this could happen if you have records with the same ids coming from an external system (can avoid this using the unique attribute for external ids) and in this case it makes sense that the data loader throws errors since it would not know what records you want to update .
How does upsert work on an external ID?
Just to confirm the behavior of data loader/Code and external IDs: the data loader/Code tries to match records it’s trying to upsert on the external id that you have specified. If it does not find a match , it inserts, if it does find one single match it updates.
How to insert or update a record using an external ID?
You can use the sObject Rows by External ID resource to create records or update existing records (upsert) based on the value of a specified external ID field. If the external ID is not matched, then a new record is created according to the request body.
How to upsert records using external ID in apex?
First exception on row 0; first error: DUPLICATE_VALUE, duplicate value found: Externald__c duplicates value on record with id: a1H370000016QkV: [] Apex code: