Starts the mail merge process.
| Name | Type | Default | Description |
| nStartIndex | number | 0 | The start index of the document for mail merge process. |
| nEndIndex | number | Api.GetMailMergeReceptionsCount() - 1 | The end index of the document for mail merge process. |
builder.CreateFile("docx");
var oDocument = Api.GetDocument();
var oParagraph = oDocument.GetElement(0);
var arrField = ["Greeting line", "First name", "Last name"];
for (let i = 0; i < 3; i++) {
var oRun = Api.CreateRun();
oRun.AddText(arrField[i]);
oParagraph.AddElement(oRun);
oRun.WrapInMailMergeField();
oParagraph.AddText(" ");
}
oParagraph.AddText("!");
Api.LoadMailMergeData([arrField, ["Dear", "John", "Smith"], ["Hello", "Lara", "Davis"]]);
Api.MailMerge(1);
builder.SaveFile("docx", "MailMerge.docx");
builder.CloseFile();