Failed to update Salesforce account because of DUPLICATES_DETECTED error even with Allow setting in Duplicate Rule

Question

I'm using JSforce to integrate Salesforce into my app. When I update a Salesforce account from my end via JSforce update function, it got DUPLICATES_DETECTED error because Salesforce considers this account is duplicate with another one. Although I set Allow in Duplicate rule setting of the Salesforce page and we can edit successfully this account on it, It cannot be done via API (with using JSforce) from my end because of this error. Is this possible to bypass Duplicate Management via JSforce without disabling these rules?

   const jsforce = require('jsforce');

   /* Update to Salesforce */
   update: function (updateObject, callback) {
     this.getSObject().update(updateObject, callback);
   }

Here is my setting on Salesforce Duplicate Rules section

Some documents suggest setting allowSave to true in header of request via API soap like this but I don't use API soap, I'm using JSforce instead.

Answer 1

Since you have enabled Alert, you are getting the DUPLICATES_DETECTED message. The Allow option means that when the user sees the alert, they are also given the option to continue and create the record anyway.

EDIT: To use the Allow option for SOAP calls, you should use the allowSave option in DuplicateRuleHeader. For Apex, use DMLOptionsHeader.