Hello, hopefully this is the right place to ask this question. Sorry if it has already been asked but my search result were not what I was looking for. We just started using a marketing agency for our plumbing business. We currently use Service titan as our software to book calls, invoice etc. When a call comes in the system is setup to know where the call is coming from by using a tracking number For each platform (Yelp, coupons, Facebook ad, door hanger etc) We wanted to start running google PPC ads but this new company is telling us we should not use a tracking number as that will mess up our search ranking (or something like that). Is this true? I though tracking numbers were the industry standard. Thanks!