Learn English – the proper alternative for ‘credentialize’

"Stakeholders" has been a strong player in biz-speak since at least the early 2000s. It usually rates highly in any list of "business terms we love to hate." Which is problematic, because the word is very pertinent to corporate operations.

A stakeholder is an "interested party." It's a person who is at some level vested in the outcome of a particular project or proposal. A person with "skin in the game."

So your alternatives are words or phrases like, "interested party," "affected person," etc. A more targeted term like "team member" will not get the job done, because a stakeholder may not be directly involved with the mechanics of the issue in question, only the outcome or net result. Such a person could be termed a "downstream player."

"All parties involved" is a possibility, but I don't see this as much of an improvement. Like it or not, "stakeholder" is an elegant term inasmuch as it captures a wide, but specific, range of individuals.

Counterfeit might fit. It implies the imitation of an original product.

To counterfeit means to imitate something. Counterfeit products are fake replicas of the real product.

Counterfeit products are often produced with the intent to take advantage of the superior value of the imitated product.

The word counterfeit frequently describes both the forgeries of currency and documents, as well as the imitations of clothing, handbags, shoes, pharmaceuticals, aviation and automobile parts, watches, electronics (both parts and finished products), software, works of art, toys, movies.

From International Trademark Association:

Counterfeiting is the practice of manufacturing goods, often of inferior quality, and selling them under a brand name without the brand owner’s authorization.

Anything that can be made can be counterfeited.