I'm attempting to merge two datasets together using reclink, but I'm not understanding exactly why I'm not having any matches returned. I know from manually examining the datasets that there are at least some matches which should merge, but they're not when I run the following code:

Code:
reclink country year using "D:\STATADATA\MEPV\MEPVv2018.dta", idm(idm) idu(idu) minscore(.8) gen(mscore)
and here is the output:
Code:
Observations:  Master N = 10203    D:\STATADATA\MEPV\MEPVv2018.dta N= 10060 
  Unique Master Cases: matched = 0 (exact = 0), unmatched = 10203
If I need to supply any other information to help, let me know.