1 - Secure subform rows with beforeRowDelete

At Zylker, the admin felt ensuring data integrity during key Deal stages is crucial. To prevent accidental loss of information, deleting items from the subform is restricted when a deal is in the following stages: Proposal/Price Quote, Negotiation/Review, Closed Won, Closed Lost, or Closed Lost to Competition.

Row Delete Prevention : beforeRowDelete subform Event by returning false after verifying Deal Stage. 

Item deletion prevention.js

//Detail Page - Subform  Items  beforeRowDelete
const restricted_Stages = ["Proposal/Price Quote","Negotiation/Review","Closed Won","Closed Lost","Closed Lost to Competition"];
let stage = ZDK.Page.getField('Stage').getValue();
if (restricted_Stages.includes(stage)) {
    ZDK.Client.showAlert("Order deletion is not allowed once the deal reaches the "+stage+" stage.","Can't delete!","Got it!");
    return false;
}