Skip to content

title: "Invalid field for upsert (Deployment assistant)" description: "How to solve Salesforce deployment error \"Error (.) Invalid field for upsert, must be an External Id custom or standard indexed field: (.) ((.*))\""

Invalid field for upsert

Detection

  • RegExp: Error (.*) Invalid field for upsert, must be an External Id custom or standard indexed field: (.*) \((.*)\)

Resolution

You tried to use field {2} for an upsert call in {1}.
- Is it declared as externalId ?
- Is the customIndex source file present in the deployment ?
- If it is declared as externalId and customIndex is present, you may have to go manually define the field as externalId in the target org