To add a subID, place an ampersand sign (&) after the first parameter and use ‘smc1’ as the name of the parameter. Subsequently, add the equal sign and the subID code you want to use. Your tracking URL will now look like this:
If you want to use multiple subIDs, make sure you add them in the same way and number the parameters consecutively. Also make sure the parameters are seperated by the ampersand sign (&). With two additional subIDs, the tracking URL will look like this:
Please note you can add up to six subIDs to your tracking URLs.
The use of alphanumeric sub IDs is highly recommended. Special characters (such as ß, ç or æ) should be submitted URL-encoded. Full stops, commas, quotation marks etc. should be avoided. If you export your sub ID data, particularly with Excel, make sure you use UTF-8 characters instead of ISO-formats.
Also, please note that the value for each smc parameter (sub ID) should not exceed 255 characters. Longer values will be shortened.