Here is my code that executes after a submit button is pressed on a cloudpage

%%[UpsertData("SubscribersTester", 1, "Email Address", @subKey, "First Name", @Fname, "Last Name", @Lname, 
     "Monthly", @Monthly, "Weekly", @Weekly, "Volunteer", @Volunteer, "Account Status", @Status, "Date Modified", NOW()) ]%%

  %%[SET @updateSub = CreateObject("Subscriber")]%%
  %%[SetObjectProperty(@updateSub,"Email Address", @subKey)]%%
  %%[SetObjectProperty(@updateSub,"Subscriber Key", @subKey)]%%
  %%[SET @client = CreateObject("ClientID")]%%
  %%[SetObjectProperty(@client, "ID", @memberID)]%%
  %%[SetObjectProperty(@client, "IDSpecified", "true")]%%
  %%[SetObjectProperty(@updateSub, "Client", @client)]%%
  %%[SET @saveOptions = CreateObject("SaveOption")]%%
  %%[SET @updateOptions = CreateObject("UpdateOptions")]%%
  %%[AddObjectArrayItem(@updateOptions,"SaveOptions", @saveOptions)]%%
  %%[SET @updateObj = InvokeUpdate(@updateSub, @updateStatusMessage, @updateErrorCode, @updateOptions) ]%%

When it runs it hits me with a 500. What am I doing wrong?

1 Answer 1


You may not be showing the entire code but you have not defined the variable for @subkey or @memberId. See the example here for using AMPscript on a custom preference page.


  /* Get the Id of the account */
  Set @mid = [memberid]
  /* Get the key from the form */
  Set @subKey = [_subscriberkey]

  if Empty(@subKey) or  @subKey == "" then
   SET @subKey = "subkey@example.com"

  • Yes I have those variables already initialized way up at the top of the page. But is the 500 code always just a non existent variable being called?
    – DaveFroop
    Jun 24, 2019 at 19:01
  • Not always. It could a lot of things. Jun 24, 2019 at 19:09
  • Is there a problem with how the calls are constructed though? The whole page is 300+ lines of code and that would be way too much to ask people go through for me.
    – DaveFroop
    Jun 24, 2019 at 19:32
  • You may have to troubleshoot it line by line. It could be the UpsertData -- data columns could have the wrong data types or wrong column names being used. Also you don't need to wrap every line in a %%[ ]%%. Put the entire code in the block. Start off with AMPscript 101 and move your way up: developer.salesforce.com/docs/… Jun 24, 2019 at 19:36
  • Do the columns have to be in the same order from as the list?
    – DaveFroop
    Jun 24, 2019 at 19:58

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