Is it required to create parent and child records in single Salesforce create call of PHP toolkit?

Question

When we are storing parent and child records in single salesforce create call using PHP toolkit is it required the External_ID_Field__c same name in both objects? or we can use any field which is carrying same value in both object

Like in my case I have two objects one is contact(parent) and another is course_c(this is custom child object) in both object I have one field in contact(Postgres_ID__c) and in another object course_c(Contact_ID__c) which content same id data.

So Can I use this fields while storing the data in Parent child records as a external_id_field_c.

Thanks in advance.

Answer 1

They need not have the same name, but they must both be External ID fields, and they should be uniquely indexed if you want to avoid duplicate record errors.