idev affiliate ,, Keyword Tracking Links

Keyword Data Type Rules

‐ Keyword cannot be more than 25 characters in length.
‐ Keyword may only contain letters, numbers, underscore and hyphens.
‐ No spaces are permitted in the keywords.
‐ The variables tid1, tid2, tid3 and tid4 must be lowercase.

Valid Example: tid1=google_ad‐words1
Invalid Example 1: TID1=google (TID is uppercase)
Invalid Example 2: tid1=google adwords (there is a space between google and adwords)
Invalid Example 3: tid1=google&adwords (the & symbol is not allowed, only underscore and hyphen is allowed)