It’s unrealistic to expect a business to have a static customer base and see continued sales growth. There may well be the odd exception or periods where it does happen, but these are few and far between.
A static customer base presents limited opportunities and over time costs will vary, material or processing costs will rise and competition will become greater, reducing profit margins. Consistent addition of new business will not only enable your business to sustain profit margins, but also increase them, continuously. Without that new business addition it’ll only be a matter of time before the business struggles, or indeed fails.
Do you want to see your business FAIL or GROW in the future?