This is a common question with a surprising answer.
Most suppliers do have their own product training, sometimes with a “certification” tied to it, that can usually be found on their travel agent portal or through a service like Travel Agent Academy. They are usually well-done and yes, you do need to know the products you sell, however I want to challenge to you resist temptation and only make product knowledge training like this 20% of your daily routine. Right now, during these early stages of creating your business, you need to be spending at least 80% of your time making sure you are getting through your modules, that your message and branding are solid, and that you are consistently list-building to increase the size of your reach to your ideal clients.
I know it is tough because product knowledge is the “travel candy” in our business and it is more fun and certainly prettier than working on a Facebook ad, crafting an IFO or writing a newsletter article…but remember:
You can know everything there is to know about every cruise ship, resort and destination in the world, but if you don’t have any clients to book on/to them, you don’t have a business. You have an expensive hobby researching travel suppliers.