Currently it is not possible to install the Finance Operations solution in an UDE environment if the tenant is registered in Liechtenstein (LI) (see also support ticket 2605111420002102)

• I explained that the error message you received—'This app cannot be installed because its packages are not compatible with this environment'—occurs because the package is indeed incompatible with your environment.
• A query was conducted for the package, which identified the following countries as compatible:
• Supported Countries for all three EUR/S4 versions (1.0.6.1 / 1.0.6.2 / 1.0.6.7) (identical):
• AE, AL, AM, AO, AR, AT, AU, AZ, BA, BB, BD, BE, BG, BH, BM, BN, BO, BR, BY, CA, CH, CI, CL, CM, CN, CO, CR, CV, CW, CY, CZ, DE, DK, DO, DZ, EC, EE, EG, ES, FI, FR, GB, GE, GH, GR, GT, HK, HN, HR, HU, ID, IE, IL, IN, IQ, IS, IT, JM, JO, JP, KE, KG, KN, KR, KW, KY, KZ, LB, LK, LT, LU, LV, LY, MA, MC, MD, ME, MK, MN, MO, MT, MU, MX, MY, NG, NI, NL, NO, NZ, OM, PA, PE, PH, PK, PL, PR, PS, PT, PY, QA, RO, RS, RU, RW, SA, SE, SG, SI, SK, SN, SV, TH, TM, TN, TR, TT, TW, UA, US, UY, UZ, VE, VI, VN, ZA, ZW
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• Since the tenant-level country selected is Liechtenstein (abbreviated as LI), which is not included in the list above, as you confirmed, the package cannot operate successfully in that environment.