My UR5e arrived with another label suffix and a visibly different tool-bracket interface. Three days awaiting a comparison; tooling remains unfitted. Seller confirmed our fixture drawing before purchase, then supplied only an equivalence assurance.
Put the delivered labels and visible interface differences beside the confirmed drawing revision, then ask for an applicable assembly drawing and comparison of the actual mating and locating features. A suffix explanation could be perfectly true while leaving the bracket question unanswered. Keep any proposed adapter change separate from evidence that the original tooling fits as ordered.