Spoofing a search engine makes search engines return pages that are irrelevant to the search, or pages that rank higher than their content warrants. Common spoofing techniques include the repetition of words, the inserting of meta tags unrelated to the document's content, or the use of words that cannot be read due to their small size or color. If a search robot detects search engine spoofing, it will significantly downgrade a page's ranking or eliminate it from the database. Most robots see static pages best. Because some engines only accept a specific amount of text for each item, you should limit descriptions to about 150 characters and keywords to 75 characters.
Some engines allow more and some less.
Some will truncate if you are over the limit but some will just ignore the page and possible subsequent pages. Resubmit the corrected URL information. The corrected information cancels incorrect URLs and invalid E-Mail addresses. In the case of some robots, this will occur during a normal re-indexing of the site at the scheduled interval. This borders into the grey areas of standard guidelines.