It helps to understand why you request the document, and what you want it to accomplish. When you open an account for an entity, you're looking to establish two things:
-The existence and identity of the entity (CIP)- this can be accomplished by reviewing documents (such as a partnership agreement, among others) or non-documentary searches (such as a review of Secretary of State filings). Your CIP policy should address which documents and which non-documentary verifications you need to use in each circumstance, and when alternate forms of verification are acceptable.
-The authority of the individual(s) seeking to act on behalf of the entity- this will almost always come from a review of the documents. Without seeing the partnership agreement, do you have another means of ensuring you are accepting the request from the correct person, or the correct number of people? Regardless of how you meet your CIP requirement, assessing the authority of the individuals is sound due diligence, and should never be optional. If the partnership agreement is your only source of this information, you need to review it.