19012: When updating a contact at least one field should be updatedPositive FeedbackNegative FeedbackERROR: 19012error-19012 page anchorPositive FeedbackNegative FeedbackERROR Descriptiondescription page anchorPositive FeedbackNegative FeedbackNo contact updates provided in the request Possible Causespossible-causes page anchorPositive FeedbackNegative FeedbackUser has not provided contact updates Possible Solutionspossible-solutions page anchorPositive FeedbackNegative FeedbackWhen updating a contact at least one field should be updated