To convey an objective and concise message, avoid using articles.

Keep button labels short to encourage action.

Use articles when the message is longer and requires explanation.

Do not use articles with proper nouns. The exceptions are when product names are treated as common nouns.

Use articles when product names are treated as common nouns.

The indefinite article used before SKU (Stock Keeping Unit) can vary depending on its pronunciation. It can be pronounced either as individual letters (/ˌɛsˌkeɪˈjuː/), which requires “an,” or as a single syllable (/skjuː/), which takes “a.” At VTEX, we use the syllable pronunciation (/skjuː/), so the preferred form is “a SKU.”