Effects of Special Characters in DKI:
1. Disallowed Characters Cause Errors:
Symbols like @, %, &, *, # cannot be dynamically inserted.
If a keyword contains these, Google defaults to the fallback text.
2. Punctuation Modifications:
Google removes commas and extra spaces in inserted keywords.
Example: "Running, Shoes" → "Running Shoes".
3. Ad Disapproval Risks:
Improperly formatted special characters may violate Google’s editorial policies, leading to ad disapproval.
Fix:
Avoid special characters in keywords for DKI ads.
Use Google's Preview Tool to test insertions.
