Recordkeeping, record keeping, or record-keeping

I think it's a mistake to characterize as "a spelling error" a decision that I may happen to disagree with about whether to hyphenate, leave open, or close up a term such as record keeping. The dispute is over the style of presentation of the term, not its spelling; and the preference of the author or publishing house is about as deep as you can fruitfully go in inquiring into its legitimacy.

Is E-mail misspelled? How about Email? Or e-mail? Or email? Or for that matter, E mail or e mail? The answers, I believe, are no, no, no, no, and no no. Some forms may be clearer than others in certain circumstances (as Edwin Ashworth points out in a comment above), some may be generally less common (and therefore less immediately recognizable to a reader), and one may have won the heart of its writer or editor—but nobody can seriously argue that any of these spellings is generally susceptible to being mistaken for any other term.

The same is true of record keeping, record-keeping, and recordkeeping in your sentence:

Service providers shall manage information using agreed upon metadata tags that can be adapted to changing missions and record keeping [or record-keeping or recordkeeping] practices.

Given the choice, I would probably use recordkeeping or record-keeping to avoid giving readers even the slightest pause to confirm that record isn't being used as an adjective in the sense of "all-time high" or "never-before-achieved," but I have no doubt that any competent reader of English prose will understand the intended meaning of the phrase "record keeping practices" regardless of how record and keeping are attached or separated.