There is a specific rule requirement to disclose any possible disadvantages in the suitability report. The rule (COBS 9.4.7) can be seen here: http://fshandbook.info/FS/html/FCA/COBS/9/4.
Remember that a disadvantage is different to a risk. For example, there is a risk that investments can fall in value, whereas a disadvantage would be that the recommended product has higher charges than the product being replaced.



PS20/06 – part one: ban on contingent charging
Alistair MacDougall Compliance 2020, FCA, Mortgage, Pension, Pension Transfer, PI
The first of four articles explaining the implementation and implications of Policy Statement PS20/06.