Converting Sheet data to a new Sheet - google-apps-script

Question

I'm trying to use Google Apps Script to communicate with Google Sheets to do the following:
We're trying to convert data from one Point of Sale system to a new one. In order to do this, I need to take certain columns of a sheet, manipulate them in various ways, and repopulate another sheet with the resulting data. I need to find products without a SKU number, and assign them a new one, starting at 10110 and incrementing from there.
function sku() {
// "From" Spreadsheet
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheetByName("New POS Data");
// "To" Spreadsheet
// Spreadsheet key: the string at the end of the URL
var ssraw = SpreadsheetApp.openById("1BH-j4cOW9Ntg6FlPNXmNCUId_pm9BgyAh0cwrwB4z_A");
var sheetraw = ssraw.getSheetByName("Old POS Data");
var max = sheet.getLastRow();
// SKU / UPC
var range = sheetraw.getRange(2,18,max);
var data = range.getValues();
// Assign new sku if no old one
var skunum=[10110];
var newData = new Array();
for (var y = 0; y <= max; y++) {
if (data[y]==""){
newData.push(skunum);
skunum++;
var skunum=[skunum];
}
else {newData.push(data[y]);}
}
sheet.getRange(2,3,max).setValues(newData);
}
This gives me the error "Incorrect range height, was 1 but should be 30 (line 26, file "SKU")"
If I remove the brackets around newData in the last line, I get "Cannot convert Array to Object[][]. (line 27, file "")"
This has been driving me mental, if anyone can offer help, I would be very grateful.

Answer 1

Even if you get a one row or one column vector with getData() you will get an Object[][].
when you do:
if (data[y]==""){
newData.push(skunum);
skunum++;
var skunum=[skunum];
}
You check if [cellFromColumn] == "" which will evaluate to false as it's an array.
You then push the new/old sku number to a simple array which, for spreadsheets, is one row of columns.
Instead you want to push into the array a one element array containin the sku number like this:
newData.push(skunum);
...
newData.push([data[y]]);
This will create an array of rows, each row is an array with one element (one column)